May be it'is Mealybugs

来源: MMM899 2007-11-15 09:28:06 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读: 0 次 (978 bytes)
mall, wingless, dull-white, soft-bodied insects that produce a waxy powdery covering. They have piercing/sucking mouth parts that suck the sap out of plant tissue. Mealybugs often look like small pieces of cotton and they tend to congregate where leaves and stems branch. They attack a wide range of plants. The young tend to move around until they find a suitable feeding spot, then they hang out in colonies and feed. Mealybugs can weaken a plant leading to yellow foliage and leaf drop. They also produce a sweet substance called honeydew (coveted by ants) which can lead to an unattractive black surface fungal growth called sooty mold.

Prevention and Control: Isolate infested plants from those that are not. Consult your local garden center professional or the Cooperative Extension office in your county for a legal insecticide/chemical recommendation. Encourage natural enemies such as lady beetles in the garden to help reduce population levels of mealybugs.

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回答上面茉莉花的贴怎么跑这里了? -MMM899- 给 MMM899 发送悄悄话 MMM899 的博客首页 (0 bytes) () 11/15/2007 postreply 09:33:06

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