Chestnut peach aphid control technology

Is a lepidoptera Moth (Pyralidae). The larvae feed on the chestnuts, and the insects in the seeds accumulate, which is untenable and causes fruit drop, which has a great impact on the yield and quality. The host also has peach, plum, pear fruit, sunflower flower disk, corn stalks and so on.
The morphous adults are about 10 millimeters long and have yellow wings and many black spots. The growing larvae have a body length of about 30 mm, a dark brown head, a dark reddish brown chest and abdomen, and a pale green belly. There were 8 round brown hairs on the abdominal section of the middle and posterior chests and the 1st to the 8th abdominal segments. Abdominal end board grayish brown.
The laws of Zhejiang occurred in 1 year and 5 generations. The winter of mature larvae is overwintering and wintering occurs between cracks, tree holes, terraced fields, piled fruit fields, and warehouse walls. In April of the following year, phlegm began. The first generation of larvae mainly damage peach fruit, and a few of them damage lily, pear and other fruit. Most of the second generation larvae still damage peach fruit, and some of them turn to corn and other crops. In the following generations, chestnuts, corn and sunflowers are mainly damaged.
Prevention and control methods (1) In the winter, the fruit was removed from the ground in the forest and was treated before April. The old cracked skin of the fruit tree branches was scraped and treated centrally to eliminate overwintering larvae. (2) Pick and drop fruits, remove pests and destroy them. (3) Chemical control. Master the 3rd and 4th generation of adult insects (late July and late August) spraying, with key shots. The effective agent can be used 30% killing pine oil EC 600 times, is effective for eggs, all ages larvae and adults, spraying this agent is safer 20 days before fruit picking. In addition, 40% dimethoate EC 800 to 1000 times, 2.5% permethrin 4000 times, and 80% dichlorvos EC 1500 times are also effective. Due to the large number of peach aphid hosts, it is necessary not only to do a good job in prevention and control of chestnuts, but also to prevent and treat peach aphid, peaches, plums, and other crops that are attached.

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