MySheen

Control wood lice in winter and produce good pears in autumn

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, Pear planthopper is the most important pest on pear trees. It can harm pear leaves, cause withered spots, weaken the tree, and reduce fruit quality and yield. Four and five generations occur every year. There are two types of adults: winter type and summer type. The winter-type adults overwintered in the cracks in the branches of pear trees, and a few in weeds, fallen leaves and soil. Comprehensive prevention and control should be carried out for its overwintering places. 1. Clear the garden. Clean up the residual branches, fallen leaves and weeds in and around the garden, bury or burn deeply, and reduce the number of overwintering pear wood lice. 2. Shave. Spread plastic film on the tree plate

Pear psyllid is the main pest on pear trees. It can harm pear leaves, cause withered spots, weaken tree vigor, reduce fruit quality and yield. 4 - 5 generations occur each year. Adults are divided into winter and summer types. The winter-type adults overwinter in the cracks of pear branches, and a few in weeds, fallen leaves and soil. Comprehensive control should be carried out for its wintering place.

1. Clear the garden. Clear the residual branches, fallen leaves and weeds in and around the garden, bury them deeply or burn them, and reduce the number of overwintering pear psyllids.

2. Scraping. Spread plastic film on the tree tray, scrape off the rough skin and rot, dry rot, ring pattern and other disease spots on the trunk with a knife, and then collect them and bury them deeply.

3. Irrigation. When the temperature drops below the freezing point, irrigation in the garden can drown out the pear psyllid overwintering in the soil.

4. Medication. The key period of pesticide control is from overwintering adult emergence stage to oviposition stage, i.e. early and middle March. Commonly used chemicals are 20% fenvalerate emulsion 3000 times solution, 10% Dachenggong WP 2000 times solution, 0.9% Aifuding 3000 times solution, etc., which can also control pear bees and pear aphids.

 
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