· Leafroller insects can cause significant damage to garden plants. The following article will help with controlling these pests and minimize further problems. Read here to get additional information. · Garden Pests How to Identify and Control Leafrollers There are a variety of damaging leafrollers that attack fruit and ornamental trees. Luckily, they are easy to control with the right strategy. Huan Song explains how to identify and control these pests. Excerpt from the WSU Crop Protection Guide. For timings at which each pesticide can be used refer to the Crop Protection Guide.See full list on treefruit.wsu.eduExcerpt from the WSU Crop Protection Guide. For timings at which each pesticide can be used refer to the Crop Protection Guide. Use pesticides with care. Apply them only to plants, animals, or sites listed on the labels. When mixing and applying pesticides, follow all label precautions to protect yourself and others around you. It is a violation of...See full list on treefruit.wsu.eduTianna DuPont, WSU Tree Fruit Extension Specialist Tree Fruit Research & Extension Center, Wenatchee, WA tianna.dupont@wsu.edu, (509) 663-8181 Articles from the Tree Fruit website may only be republished with prior author permission © Washington State University. Reprint articles with permission must include: Originally published by Washington Stat...See full list on treefruit.wsu.edu One of the reasons leafrollers are hard to control is because they have different numbers of generations per season, they cause different sorts of damage to different plants, and in some seasons their presence doesn’t necessarily mean they will be a problem. Optimum control and a minimum amount of damage by fruittree leafrollers occur when a spray is applied at the time of larval hatching or shortly afterward. To determine this time, inspect twigs showing flushes of new foliage and look for feeding injury and the small caterpillars. Some species of leafrollers will feed close to fruit and cause damage to young fruit. Older larvae can be seen feeding directly on fruit, either on the skin or on the flesh. How to control Leafrollers The first step to keeping leafrollers off your trees is monitoring and prevention. Follow this DIY guide and use the recommended products and steps to control leafroller infestations completely. Leafrollers are the caterpillar stages of various species of moths belonging to the family Tortricidae. Can leafrollers be controlled?However, the larva of one species, Colpoclypeus florus, feeds externally. Parasitoid larvae or pupae, or their empty pupal cases, can often be found with dead leafroller larvae still inside the rolled leaf. The potential for biological control of leafrollers is low in orchards using insecticides to control codling moth and other insects.Are leafrollers a problem?Leafrollers should not present a big problem to your orchard or garden in most years. However, every few years, there might be a large population that can cause sizable damage. This is a resource to help you recognize and control leafrollers so they won’t have a chance to destroy your plants. What Are Leafrollers?Do leafrollers damage plants?Leafrollers don’t usually do much damage, but some years they appear in huge numbers, and that’s when they become a real pest. They can also weaken plants if they’re already dealing with other pests or diseases. Ready to learn more? What Are Leafrollers? Leafrollers aren’t one individual species of moth or larvae.Can a leafroller damage a fruit tree?Pear damaged by a fruittree leafroller. Leafrollers, the larvae of certain tortricid moths, often feed and pupate within the protection of rolled-up leaves. Several species can cause problems on fruit and ornamental trees in California. One of the reasons leafrollers are hard to control is because they have different numbers of generations per season, they cause different sorts of damage to different plants, and in some seasons their presence doesn’t necessarily mean they will be a problem. Optimum control and a minimum amount of damage by fruittree leafrollers occur when a spray is applied at the time of larval hatching or shortly afterward. To determine this time, inspect twigs showing flushes of new foliage and look for feeding injury and the small caterpillars. Some species of leafrollers will feed close to fruit and cause damage to young fruit. Older larvae can be seen feeding directly on fruit, either on the skin or on the flesh. How to control Leafrollers The first step to keeping leafrollers off your trees is monitoring and prevention. Follow this DIY guide and use the recommended products and steps to control leafroller infestations completely. Leafrollers are the caterpillar stages of various species of moths belonging to the family Tortricidae. Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages.