Artificially control over-wintering to scrape rough skin from trunks; clean gardens in winter, clean up fallen leaves, weeds, etc.; remove larvae of pear borer fruits thoroughly before the emergence of larvae until the emergence of larvae (before wheat harvest). This is a key measure to eradicate pear borer pests. ; At any time to remove, pick up fruit damage harmful fruit; reasonable planting trees, try not to peach, pear mixed or adjacent.
The drug prevention and control of the heartworm can not be controlled once it is broken into the fruit, so it is the key to control such pests that the accurate control period is achieved.
Ground control under the tree When the larvae reach the peak of their exhumation (approximately mid-May or early June), the first ground application should be started. It can use 40% methylisosalt-phosphate EC 200 to 300 times, evenly sprayed in the tree tray, can also be sprayed on the ground under the tree, the insecticidal effect is very good.
For the pear borer, peach borer, and so on, the sex attractant can be hung in the orchard, and the number of trapping insects can be checked every day. Usually, 15 acres of orchards can be hung. When the number of trapped worms increases dramatically, check the eggs once every 3 days. When the egg rate reaches 0.5% to 1%, chemical control can be performed.
The main agents are:
(a) 20% diflubenzuron suspension or 25% diflubenzuron WP 3000 to 4000 times.
(b) Weiyuan Panan (1% Emamectin benzoate) 3000 times solution or Weiyuan Green Park (2.0% emamectin benzoate) 4000~5000 times solution or Weiwei Yuanhong Jia (2.15% Emamectin benzoate) 6000-8000 times + high 2000 times or high 3000 times.
When the number of insect populations is large, it should be sprayed once every 15 days or so, and 2 to 3 consecutive injections are appropriate.
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