Planting pear trees to prevent insect pests in spring

Pear spring pests and diseases are: pear big fruit borer, aphid, spider, pear psyllid, stink bug, leaf miner tick and black spot disease.

Control time and control measures early spring to flower bud expansion before cleaning orchards and scraping bark. Spread plastic cloth under the tree, and then scrape off the skin and thick skin on the trunk and big branches, but do not hurt the new skin. The thick vertical bark of the branches should be finely scraped. Bury or burn the bark, larvae and eggs that have been scraped off. Drop dead leaves and residual fruit from trees and clean out orchards for destruction. Finally, spray stone sulfur mixture on all trees once.

Flower buds expand to flowering before the whole tree spray 800 times omethoate and 1500 times enemy kill mixed solution once, spray evenly, spray branches such as light rain wet. Sprinkle 100g of soil bacteria and insect pills before flowering, and gently rub them once after application to make pesticides fully mixed with soil.

At the beginning of florescence, spray 1000 times of main effect cyanogen chloride once on the whole tree to prevent scarab from damaging pear flowers.

Spraying 0.3% borax, 0.3% urea and 0.5% white granulated sugar on the whole flower at full bloom could effectively promote the fruit setting rate of flowers.

After 10 to 15 days after flower drop, spray 800 times carbendazim and 1000 times beta-cypermethrin mixed solution twice on the whole tree with an interval of 7 days. The main prevention of scab, mold and heart beetle, stink bug, etc. If add spray 1500 times imidacloprid, can treat leaf miner tick, psyllid and aphid concurrently.