Find the best Tree Disease Management near you on Yelp - see all Tree Disease Management open now. European elm scale—Gossyparia spuria. Dabbing individual pests with an alcohol-soaked cotton swab or neem-based leaf shine will also work when infestations are light. The mature bodies are the easiest to spot, as the crawlers are pretty small—about the size of a pinhead. Yet no matter how solid your trees are, they’re vulnerable to insect attacks. Thankfully, properly timed treatment can prevent the production, growth, and spread of the spores that cause tree diseases. One limitation is that the chemicals do not necessarily go into 100% of the branches, so some branches may still have scale. Will crape myrtle bark scale kill my trees? Pine needle scale is an armored scale that can have two generations per year. These pests are more susceptible to sprays at that specific time in their life cycle than at other periods. Armored scales and soft scales are the most common types (or families). I want to use it everyday because it feels so good and smells so good. It started to put out tiny leaf buds, so we rewarded it with a light misting of seaweed extract to encourage it along. Gloomy scale occurs on the soft maples like silver and red maple. We also suggest that HOMEOWNERS drench the soil each fall with Bayer tree and shrub care or other brands of imidacloprid (like Bandit)  to "boost" the imidacloprid level in the tree. They insert their mouthparts into the plant and don't move thereafter, feeding out of the same hole in the tree the rest of their lives. Deep root fertilization applied by a certified arborist ensures the tree's health is robust and aerates the soil. Management. Still not sure if you have scale? Magnolia trees and bushes are susceptible to this scale, not to be confused with black scale, which refers to a very specific species (Saissetia oleae) that attacks citrus and olive trees. Jim Luzar, an Extension Educator with Purdue Extension shows you how to treat Tulip Poplar Tree Scale. Oystershell scale is pretty common on aspen in Wyoming. At home, management of your trees is important to confine the insects and save your trees. Wait 24 to 36 hours to make sure the … The rate may be reduced if several trees are treated in one yard or neighborhood. Insecticide applications must be timed to ensure trees are protected prior to when nymphs insert their mouthparts into the needles and begin to feed. Parks Department managers know how to treat pine needle scale and prevent it from spreading to other plants. Another natural and easy-to-produce remedy for scale insects on the lemon tree is soapy water. Some types of soft scales include lec… Some scale species lack males and the females reproduce without mating. The scale sucks sap from the tree and causes leaves to turn yellow and drop. The soft bodied scale is not fastened permanently to the tree. Some types of armored scales include pine needle scale, oyster shell scale, and euonymus scale. In spring treatments, the dinotefuran gives quick  kill and the imidacloprid moves into the tree slowly and is present in the tree when egg hatch occurs and crawlers appear. Scale insects in the garden can be combatted in a number of ways, the best of which involves prevention or removing infested plant material before the insects can spread. The honey-dew falls onto surfaces below and sooty mold proliferates in the sticky sweet substance. TriCity Tree Doctor  Call us at 989-454-0227, United Tree Service  Call us at 810-266-4363. Damage to an infected tree can include: A sign of a soft scale infestation is a coating of the sticky honeydew substance that they secrete on picnic tables, walkways, and parked cars below the infected tree. Scale. Systemic insecticides have been shown to be effective against this insect if used with the right timing, and these treatments do not kill the beneficial insects. Lichens on trees are unique and harmless but some may consider them unsightly. Key Points. I have a citrus tree grown from seed which I recently took on from a friend of ours. Scale insects can be divided into two groups:Armored (Hard) – Secrete a hard protective covering (1/8 inch long) over themselves, which is not attached to the body. Scale insects can overwinter as nymphs or eggs tucked away in tree bark. Scale can sometimes have the appearance of bumps or spots on plants. During early growth stages, scales are called crawlers because they are mobile. I use it when I can tell my hair needs either a deep cleaning, or a moisture boost. It can be applied during the tree’s dormant season to kill off insects such as scale, aphids and mites. Find the best Tree Disease Management near you on Yelp - see all Tree Disease Management open now. When scale numbers are low they may be rubbed or picked off of plants by hand. Scales in other families include important pests of cactus, elm, oak, sycamore, and various conifers. When honeydew falls from a tree, leaves shouldbe inspected for live soft scales or mealybugs. Curative treatment against scale insects and mealybugs . Best magnolia scale treatment varies based on the severity of the infestation, the time of the year and the overall health of the tree: ... Dead scale insects on the ground and healthier, fungus free tree are usually signs that the treatment is working. All scale insects feed on the sap or plant juices of their host plant. Some species can cause a great deal of damage to the foliage on which they feed, while others are harmless. Damage. The white egg sacs burst open in July as the eggs hatch and the immature scales crawl out to the leaves. We often inject dinotefuran at the first visit, followed a few days later by an injection of imidacloprid. Some species prefer fruiting trees like orange, olive, or lemon. In the past, treating insect pests of large trees involved spraying them from the ground. Often, a sticky substance can be found near the scale or on leaves. Bernalillo County New Mexico. However, these scales also cause significant lower branch dieback and can be seriously stressful to the tree. Branches covered with small bumps. More than 60 different kinds occur in Indiana, yet they are often overlooked or ignored until tree or shrub branches “mysteriously” start to die. This will smother scales and also mites and other soft-bodied insects. Shaped like rounded bumps 4. Gloomy scale is an insect that protects its self with a small covering. Honeydew then turns to sooty mold and that interferes with photosynthesis in leaves, and can cause leaf drop and branch die back. One of the more recent advances involves treating tree pests with soil treatments. Treatment of scale on plum and cherry trees. If seeking treatment at an emergency room or doctor’s o˜ce, bring this product label to show medical personnel. Magnolia scales produce large quantities of honeydew (sugary excretion) that accumulate on the tree’s leaves and twigs. Larger trees are a challenge because of their size, but an effective method in this case is to inject systemic insecticides into the soil or the tree trunk. Tree lichens appear on many trees. The hard scale lives and feeds under this spherical armor and does not move about the plant. If you have a Cherry Tree, Cherry Laurel, Red Twig Dogwood, Privet, Lilac, or Euonymus in your landscaping, you should really learn what White Prunicola Scale is. Sap feeding by the scales causes stress to heavily infested plants and can result in stunted growth, yellowish foliage, branch dieback, or death of the plant. Also, when this soft scale feeds on leaves and twigs, a large quantity of honeydew is excreted. Give us a call at 703-573-3029 or book online as soon as possible to schedule a consultation with one of our Certified Arborists. That time is usually late summer. Treatment Strategy. The sooner White Prunicola Scale … Now spray the leaves and stems with the lye. Magnolia scale is the largest scale insect in Iowa. Generally, they are divided into two categories, armored (hard) and soft scale. for quick results supplemented with soil drench of. Soil Application using Transtect . I DO! It’s easier for a strong, healthy tree to fight off diseases and pests, so proper maintenance is key. Crawlers Horticultural Oil Precautions Test the spray on a leaf or two. COTTONY MAPLE SCALE is an insect pest of maples, especially silver maples and locust trees primarily, but also will infest several other species. You can try horticultural oil treatments or to smother the new generation of scale insects that will hatch from eggs hidden under the waxy scales formed by their mothers bodies. Thank you. If left uncontrolled, one or two major infestations can kill your tree. Scales encrust bark at the crotches of twigs and on the lower surface of limbs. My niece, who is a Paul Mitchell stylist, sent me a bottle of this Tea Tree Hair and Scalp Treatment. These are small insects and affect the stem, trunk, and … Heavily infested branches should be pruned and destroyed. If you have an unhealthy or stunted olive tree that is showing signs fo Black Scale infestation like ours, here’s how we managed to revive the poor tree. Scales shoot a sweet substance called honeydew. This method is more expensive than others, but well worth it because of the success rate. by calling 817-882-6499 to schedule an appointment with our ISA certified arborist. GET A QUOTE. To protect parasites, avoid spraying with insecticides during the summer. They do not secrete honeydew.Soft – Secrete a waxy film (up to 1/2 inch long) that is part of the body. Notoriously hard to control, scales are sap-sucking insects that prey on most kinds of trees and plants. In most cases, they are able to move short distances (but rarely do) and produ… The syrupy secretion can attract a fungus, called sooty mold, which covers and discolors infested trees and plants, as well as sidewalks, roofs, and other surfaces. The cost for trunk injection is usually around $10 per trunk diameter inch. If you notice a light infestation beginning on already established trees, immediately prune back the twig or branch and dispose of it. Citrus scale control can be accomplished with the use of pesticides, biological control via the introduction of indigenous parasitic wasps (Metaphycus luteolus, … Sucking insects such as aphids, scale insect crawlers, adelgids and lace bugs can be effectively treated. Both use long, needle-like mouthparts to suck out sap from the host tree or plant.Characteristics of Soft Scales 1. The European elm scale occurs only on elm trees. In most single stem trees, we see 80 to 90 % reduction of scale populations and honeydew production. Petroleum-based oils reduce the amount of scales. The treatments target the crawlers, not the adults. Don’t have a shell, instead they secrete a cotton-like or waxy substance over their bodies for protection. The success of any treatment can be gauged by the extent to which new growth remains free of scale insects. Kermes scale is aggressive and can cause significant damage in oaks, and treatment is necessary when infestations advance to cover most of the tree – of course, the earlier treatment is implemented, the better prognosis for the tree. Asked May 15, 2016, 11:20 PM EDT. Tree Disease Treatment. SCALE INSECTS are the usual cause of sweet, sticky drippage (honey-dew) from trees that collects on surfaces below. Honeydew promotes the growth of a black sooty mold, that imparts a blackened appearance to leaves, twigs, branches, and other substrates beneath an infested host plant. They’ll even pick the scale up and move them all over the tree. Others attack a variety of hosts such as white wax scale occurring on gardenias and citrus; and cottony cushion scale occurring on figs, rose, magnolias, grevilleas and citrus. The good news is that we have methods to control the problem, no matter what insect is to blame. Ants like to ‘farm’ the scale to feed on the honeydew. Source: coniferconifer. Adult scales become stationary, feeding on one spot of the host. Call Elite Tree Care today at 610-935-2279 and let's talk about how we can help you with Tree Scale and other Pennsylvania tree pests. If you think your tree is showing signs of White Prunicola Scale or if your tree had this insect last year, we can help. Don’t have a shell, instead they secrete a cotton-like or waxy substance over their bodies for protection 5. Management. Also see Armored (h ard scales) for additional scale insects. Once all the leaves have fallen, saturate the tree with a dormant oil. Whenthe bump itself can be squashed it is likely to be some othertype of scale. However, the range of plants affected is extremely wide. Kermes scale is a serious insect pest of pin and red oak. Tree Scale Treatment. She and her husband raved about it, and decided I should feel the same way. Ants like to ‘farm’ the scale to feed on the honeydew. The soapy mass settles in the respiratory tract of the scale insects until they suffocate. Scale infestations weaken the host tree, and if the infestation is severe enough the tree can die. Tree & ShrubInsect Control CONCENTRATE 12 Month LANDSCAPE FORMULA - Treats Twice as Much† ENVIRONMENTAL HAZARDS NOTE: When calling poison control center, have this product label accessible. There’s nothing worse than watching a healthy tree gradually succumb to disease, only to become a safety hazard. The Signs and Symptoms of Magnolia Tree Scale. Send our experts a photo and ask for their advice. How do I know if I have it? Armored scales and soft scales are the most common types (or families). Aphids are also known as plant lice. Crepe myrtle scale has no natural enemies here yet, so follow the Grumpy Gardener's tips for controlling this pest. Occasionally, a tree or shrub will die as the result of a severe infestation if it is not effectively managed. Types of scale on citrus plants in the soft scale group are Caribbean Black Scale and Cottony Cushion Scale. When controlling citrus scale, one may also need to eliminate the ant colonies , which thrive upon the honeydew extruded from the scale. Best magnolia scale treatment varies based on the severity of the infestation, the time of the year and the overall health of the tree: Prevention is the best medicine – a healthy well-watered and well maintained tree is less likely to develop a scale infestation Pruning the affected branches and twigs > Elm Scale Treatment. This product is amazing! The scale will NOT kill your trees but they reduce the amount and size of the blooms and the sooty mold makes them less attractive. It can be applied during the tree’s dormant season to kill off insects such as scale, aphids and mites. 3  Spraying with horticultural oil is effective in late spring just before the leaves unfurl. We have had excellent results, achieving 80 to 90% reduction of scale populations and similar reduction of the honeydew and sooty mold problems. Currently, these insects are in their crawler stage feeding on the sap of the tree’s leaves. Heavy scale infestation on persimmon tree. Flip over suspiciouslooking bumps on twigs and branches with a thumbnail. The soft scale gives off large amounts of honeydew upon which sooty mold fungus forms, they can move on their own but often they are moved to other areas when ants relocate them. A new pest threatens the South’s favorite flowering tree There is a new insect pest coming after the South’s favorite flowering tree: Crepe Myrtle Bark Scale. This is a secretion from the scale called honeydew and it often acts as an attractant for ants or as a growth source for sooty mold. for longer lasting scale control. They damage plants by sucking out plant juices. Our treatment of choice is trunk  injection of dinotefuran, usually supplemented by trunk or ground injection of imidacloprid. Systemic insecticides work very well to control the bark scale, but the timing is most effective when applied in late winter/early spring. Scale insects belong to a large group of sucking insects that attack a wide variety of trees and shrubs. Since they don’t move once they are attached to part of a plant, they can often go unnoticed until the tree starts to show signs of stress. Commercially available beneficial insects, such as ladybugs and lacewing, are natural predators of the young larval or “crawler” stage. If you are just now spotting the problem, you can clean off the trunk with warm, soapy water to remove the black sooty mold. Note that dead scales can remain firmly attached to the plants. Magnolia scales are scale insects of various colors, from light to dark. Sprays are often ineffective and can worsen the condition if done in May and June, because beneficial predatory insects are killed while the adult scales are largely resistant to treatment by sprays. Like the cottony maple scale and other soft scales, the lecanium scales excrete large amounts of honey-dew with its attendant nuisance factor. Cottony camellia scale. The pest is very common in the tri-city area of Michigan at this time. Systemic insecticides applied by trunk or soil injection are the methods of choice  but are more costly than sprays. Gloomy scale is very difficult to manage after populations are established. This scale is very prevalent on ash trees, sugar maples and oaks, but can infest many species of deciduous trees. Horticultural oil is approved for organic production and is used by both organic and conventional growers. These six-legged insects are smaller than a pinhead. They’ll even pick the scale up and move them all over the tree. Insecticidal Soaps are an excellent option for eliminating crawlers without resorting to the use of heavy-duty chemicals, but they don’t have much effect on the mature females. It’s natural and it doesn’t hurt the tree but will suffocate the insect. NOTE: There are other different types of scale and some scale insects are host specific, such as rose scale, white palm scale, gum tree scale and tea scale (camellias). To control magnolia scale successfully, you must spray the insecticide (for example, malathion or acephate) at the right time in this insect's life cycle (namely, when it is in the crawler stage). As spraying large trees has become more difficult and controversial, new treatment methods have been investigated. Controlling Citrus Scale. For a large infestation, two applications of insecticide spaced 7 days apart may be necessary to rid the tree of scale. Within two weeks of treatment, our poor olive tree started to look better. Lecanium scale is a group of common soft scale insects that feed on the sap from shade trees and woody ornamentals. Usually larger than armored scales 3. If you have scales on your trees, you can spray them with a horticultural oil. Can you recommend a treatment or company that can help me with this. Honeydew’s sweetness can also attract ants, bees, and flies. These scales flatten themselves against tree … The mature female is a dark red, brown, or purple oval surrounded by a white cottony wax fringe on the sides of the body. A native soft scale that feeds on different species of shade trees, including maple, hawthorn, dogwood, sycamore, and linden. Treatments For White Prunicola Scale: White Prunicola Scale can be difficult to control; however, with a combination of overall health improvements and targeted scale treatments, our Arborists can help stop them from destroying your trees. Parasites generally provide control of many scale infestations. Nevertheless, both are unarmored scales and the treatment for them is the same. Other species of wax scales include tree dwellers like the cottony maple scale (Pulvinaria innumerabilis) or the calico scale (Eulecanium cerasorum). For assistance with identifying, treating, and preventing tree scale and other pests, contact Elite Tree Care today at 610-935-2279. Magnolia scale insects are mobile only during the crawler, or nymph, stage. Twig or branch dieback is common when an infestation of this insect occurs. If treatment is necessary, spray the tree or shrub with a dormant rate of horticultural oil during the dormant season to control overwintering scales. Scale insects thrive in warm, moist locations and typically target the underside of plant leaves and leave joints. Fully developed females are much larger and sometimes have a waxy coating. Both use long, needle-like mouthparts to suck out sap from the host tree or plant. Let’s look at what lichen on tree bark means and what the treatment for tree lichen is. Treatment Strategy. In the past it's had a problem with scale insects, which I'm still finding here and there. Black scale in olive tree (Saissetia oleae Olivier, 1791), is one of the most important pests in the olive grove.. Saissetia oleae, is also commonly known for tizne mealybug or carapace.. Like the Prays and the olive fruit fly, the black scale can cause significant damage.. A tree that large is past the point where hand removal of the scale is possible or practical. When a soft body is beneatha cover, the plant is likely to have live armored scales. While it’s merely an annoyance on these surfaces, honeydew is detrimental to the trees and plants it coats. It’s natural and it doesn’t hurt the tree but will suffocate the insect. Injections can be given at any time in the growing season, when leaves are on the tree or in the spring just before leaves open. In multiple stem trees, it can be difficult to get more than 60 to 70 % canopy coverage and scale control, but when the soil applied product spreads, control may improve. It is important to have an ant barrier of a 3-4 inch band with tangle-foot around the trunk of the citrus to help protect ants from invading citrus. In lighter concentrations, horticultural oils can also be applied during the growing season. Once dead, the soft scale will fall from the tree instead of remaining stuck as the armored scale. Some look like tiny oyster shells, some resemble fish or reptile scales, and there are plenty of others. Depending on how old they are, their color can vary from brown to white. Scale insects suck sap from plants, depriving them of essential nutrients that often results in the death of the tree or plant. (The bumps are actually the insects.). Scale insects on indoor plants can breed all year round and so there is no best time of year to treat. Scale insects can be devastating to citrus trees. If you’ve got scale on your citrus trees, you’ll probably also notice that there are ants crawling over your tree too. Do not expect adult scale to fall off after an insecticide treatment. A one year warranty is provided for these important treatments. LECANIUM SCALE is another "soft scale" insect which is very prevalent in the tri-city area at this time. Common scales and their tree and shrub hosts are listed in Tables 1–3. Gardeners use spray oil as a selective pesticide treatment for scale on citrus trees. For a magnolia scale treatment to be effective, you have to spray the insecticide at the right time in the insect's life cycle (mainly, at the crawler stage). In the spring, the nymphs become immobile, feed on tree sap, and mature into an adult. Safari Tree can help provide your trees and shrubs with the ultimate care! Treatment Of Scale Insects . Insecticide applications are successful when scheduled and administered by a tree expert. They tend to be considered either a fortunate blessing or a frustrating pest. When adult scale is attached to the tree, it often appears as crusty or waxy bumps on the tree and is often mistaken for part of the tree’s own growth, but it is actually an insect. Tree disease protection begins with a comprehensive inspection of your landscape by one of our ISA certified arborists. Keep trees well-watered and suitably pruned, and be sure to carefully inspect new plants and trees for infestations before you bring them into your yard. Monitor three to four year old twigs for the gray protective covers of this armored scale insect. Resembling small bumps on twigs and branches, scales don’t look like most insects; therefore, they can easily go undetected. Produce a sugary liquid called honeydew 2. For inside plants, treat against scale insects from fall until the beginning of spring, 3 to 4 times in all. Some types of soft scales include lecanium scale, cottony maple scale, and magnolia scale. NOTE: There are other different types of scale and some scale insects are host specific, such as rose scale, white palm scale, gum tree scale and tea scale (camellias). Last fall I treated my trees systemically with Bonide but I noticed today the leaves are sticky and shiny indicating the treatment didn't work. Eventually, branches become encrusted with this armored scale. The pests are tiny insects which suck sap from the citrus tree and then excrete honeydew which accumulates on leaves, branches and fruit. The tree may never need another injection. Large trees with serious scale problems will need professional application of one or more insecticides by trunk injection and/or soil injection. Explore other popular Home Services near you from over 7 million businesses with over 142 million reviews and opinions from Yelpers. The adult female scales are tan to brown, 1/4” in diameter, round and immobile. The injected dinotefuran will rapidly spread throughout the canopy of the tree, usually within a few days. Treatment of the scale is difficult, especially on large trees. Phyllis, Albuquerque . Aphids. Early detection is critical for best management of infested trees. Some scale species lack males and the females reproduce without mating. Check plants for live scale infestations. Dormant horticultural oil spray is the best treatment for Scale. Kermes overwinters as an obscure nymph on the branches of the oak tree and concentrated around leaf buds. Sprays coating the underside of the leaves at this time can be effective, but thorough coverage is difficult. Although less commonly seen, gloomy scale can also infect grapes, native hollies, sweetgum, and mulberry. Treatment of the scale is difficult, especially on large trees. APHIDS are often blamed, and sometimes contribute to the honeydew, but by far the most copious honeydew production is by soft scale insects described below. SCALE INSECT TREATMENT With a yard full of trees, you give your home an air of sturdiness and solidity. There are two main groups of tree scale—soft and armored (hard). Others attack a variety of hosts such as white wax scale occurring on gardenias and citrus; and cottony cushion scale occurring on figs, rose, magnolias, grevilleas and citrus. There are two main groups of tree scale—soft and armored (hard). Leafminers, such as birch, boxwood, and alder leafminers, and some borers such as bronze birch borer are vulnerable to soil injection. Honeydew also leads to sooty mould, a black dusty fungus that grows over the leaves and stems. Gloomy scale attaches to the bark of the tree… When utilizing any pesticide for controlling citrus scale, follow manufacturer’s instructions and spray the entire tree until it is dripping wet. We provide plant scale treatment in Fort Worth, TX. Nevertheless, both are unarmored scales and the treatment for them is the same. It's 8-10 years old, seems to be in good health, is about a metre high, and is wintering indoors in a sunny south aspect. Controlling the scale will also get rid of the sooty mould. Explore other popular Home Services near you from over 7 million businesses with over 142 million reviews and opinions from Yelpers. Magnolia scale can be very hard to get rid of on your own. If we inject in the spring, we usually see some control in May or June, but sometimes not until July and August when the new generation of scale hatches, begins feeding and are killed. Common scales and their tree and shrub hosts are listed in Tables 1–3. Different species of scale vary in appearance and there are more than 1,000 species in North America. These insects are more vulnerable to sprays at that particular time in their life cycle than at other periods, and that time is generally late summer. The soil injected product may go into those branches and give more thorough control. Scale is most common on new, tender, woody growth. Fruit lecanium scale Fruit lecanium scale on twig Photo:Bugwood.org. Preventive treatment against scale insects and mealybugs. Pine needle scale will appear to be whitish scabs on the needles and stems of the plant. Sprays are often ineffective and can worsen the condition if done in May and June, because beneficial predatory insects are killed while the adult scales are largely resistant to treatment by sprays. Non-pesticide control. Citrus Tree Scale treatment. Coffee scale is a major agricultural pest in coffee crops. 1 Response. Scale insects are small, non-mobile insects that attach themselves to the wood, foliage, and, sometimes, the fruit of trees. We see many ashes and sugar maples in Midland with severe lower branch dieback caused by this scale insect. As soon as mealybugs appear, destroy their protective shell with a rag dipped in beer, 90-proof alcohol or soapy water, and then treat with scale insect spray. Heavy infestations may cause leaf yellowing, stunting, and dieback. No need to remove your trees if you suspect infestation. Under severe conditions an infestation may kill the entire tree. Prune and destroy heavily infested twigs and branches. Although the insect does not usually cause much damage to the tree, it is truly a pest to the humans who live below because of the copious honey-dew excretions of the insect. Scales in other families include important pests of cactus, elm, oak, sycamore, and various conifers. Scales shoot a sweet substance called honeydew. There are all sorts of scale insects that feed on landscape trees and shrubs here in our area. HELP. Contrary to its name this is a native scale. The most common scale insects that infest maple trees are the armored varieties oystershell scale and scurfy scale, as well as the soft varieties cottony maple scale and lecanium scale. However, treatment is necessary. Upon closer examination, these branches are likely to be covered with small bumps that are actually scale insects. The increased cost is justified because the method is VERY effective and may last two or more years, especially if "boosted" by the homeowner with soil applications of imidacloprid, (see below). Adults will die naturally after reproducing, but will remain attached to the tree … This scale's life cycle is slightly different that the cottony maple scale, with the eggs hatching slightly sooner in June or early July. 4) European fruit lecanium scale, Parthenolecanium corni. Dormant horticultural oil spray is the best treatment for Scale. The best thing about systemic treatment is that it does not kill the beneficial predatory insects (twice-stabbed ladybugs and tiny parasitic wasps). Barkis usually intact beneath a scale. To make the lye, take a teaspoon of curd soap to a liter of water.