(IPPM) in Vegetables - Vegetableipmasia.org

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Resource Manual on IPPM in Vegetable World Education Philippines, Inc. small holes in leaves. The damage can be particularly serious on small plants. The corn flea beetle can transmit a bacterium that causes Stewarts wilt on sweet corn. Characteristics: Flea beetles come in various sizes and colors, but they all have enlarged hind legs that allow them to jump like a flea when disturbed. 3. White Grubs Family: Scarabaeidae Plants attacked: Most vegetables Type of damage: Grubs feed on the roots or other underground parts of most vegetables. Damage typically consists of surface scars and round gouges. Characteristics: Grubs are mostly a problem in fields following sod. Weedy gardens are also attractive to ovipositing beetles. 4. Leafhoppers Family: Cicadellidae Plants attacked: Many vegetables, including bean, potato, eggplant, celery, beet, and tomato. Type of damage: Leafhoppers suck plant juices from the underside of leaves. Potato leafhoppers may cause a condition called tipburn or hopperburn on bean, potato, eggplant, and rhubarb. Beet leafhoppers transmit a disease called curly top to beet. Remember: Leafhoppers can increase to extremely large numbers in a short time, but generally are very susceptible to insecticides. 5. Japanese Beetle Popilia japonica, Family: Scarabaeidae Plants attacked: Many vegetables, fruits, field crops, ornamentals and turf grass. Type of damage: Larvae feed on roots of turf grass and other plants. Adults feed on leaves, flowers, and fruit of many types of plants. 114
Resource Manual on IPPM in Vegetable World Education Philippines, Inc. Remember: Adults are not effectively controlled with scented traps. 6. Cutworms Family: Noctuidae Plants attacked: Nearly all vegetables Type of damage: The most common damage appear in young plants cut off at the soil surface. Cutworms may also climb the plant and feed on foliage and fruit Remember: Damage can be reduced by keeping gardens free of weeds before and after vegetables are planted. 7. Tarnished Plant Bug Lygus lineolaris Family: Miridae Plants attacked: Beet, chard, celery, bean, potato, cabbage, cauliflower, turnip, salsify, cucumber Type of damage: Tarnished plant bugs suck plant juices and may inject toxic saliva into the plant. Leaves may become deformed, stems and petioles may be scarred and discolored, or the buds and developing fruit may be dwarfed and pitted. Remember: Tarnished plant bugs become active very early in the season and are capable of migrating to find preferred host plants. 8. Two-spotted Spider Mite Tetranychus urticae Family: Tetranychidae Plants attacked: Bean, corn, tomato, eggplant, etc. Type of damage: Mites suck plant juices from the underside of leaves. The leaves become bronze or yellow and the foliage takes on a general wilted appearance. Remember: Mites are not insects. The symptoms of mite damage may be caused by other factors, so be sure to look for mites with a hand lens. Mites are more of a problem in hot, dry weather, so heavy rains may help to control mites. 115
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Resource Manual on Integrated Produ
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Compiled and published by: World Ed
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ACKNOWLEDGM ENT World Education (IN
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1. Leaves 48 2. Flower 49 3. Fruit
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Sources 203 Part XII: Farm Record K
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Resource Manual on IPPM in Rice Wor
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