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问:柑桔“老木虫”有哪几种?最简便的防治方法是什么? 答:危害柑桔的“老木虫”,以为害部位来分,有脚虫(星天牛)、树虫(褐天牛)、枝天牛(绿桔天牛)。它们都属于鞘翅目、天牛科,所以通称天牛。天牛的一头雌成虫一生要产卵8—50粒,为害期长达1—2年。从卵孵化出来不久的幼虫便咬食树皮,继而钻入木质部,蛀成弯曲隧道,使树干中空,抗逆力减弱。脚虫专门咬烂柑桔根颈附近的树皮,然后向主根侵食,
Q: What kinds of citrus “old wood worm”? What is the easiest way to control? A: “Old wood pests” that endanger the citrus, to the points of harm, there are foot beetles Brown sky), branch day beetle (green day beetle). They belong to Coleoptera, Cerambycidae, so commonly known as Celastrus. A female adult beetle spawning life of 8-50 grains, the damage period of up to 1-2 years. Shortly after hatching from eggs, the larvae bite the bark, then drill into the xylem, erode into a curved tunnel, leaving the trunk hollow and reducing the resilience. Foot insects bite rotten bark citrus near the neck, and then to the main root invasion,