Control of four kinds of pests of Hawthorn

1. Peach heart borer

1. Before the larvae were unearthed, spraying 1000 times diluted liquid of Lesben on the soil surface of Hawthorn tree plate and spraying once more every 20 days could effectively control peach heart borer.

2. Spraying Hawthorn trees during the peak spawning period and the peak hatching period of the larvae, the Hawthorn tree can be sprayed with Lesbon diluted 1000ml 1500 times, or 10% bifenthrin EC diluted 1000Mel 2500 times.

2. Hawthorn spider mite

1. Artificial control and scraping off the old rough bark of Hawthorn branches to reduce overwintering mites. Before the middle of August, grass bundles are tied to bark-scraped branches to attract adult mites that are about to overwinter. in winter, the grass bundles are removed and burned, and adult mites can be eliminated.

2. During the period of overwintering adult mite stinging and larval mite incubation, spray it with 5% nisorone EC diluted 1500 times, or 50% mikexil wettable powder diluted 1000 Mel 1500 times, or 50% bromoacarate EC diluted 1000 Mel 1250 times.

Third, Hawthorn bark moth

1. Artificial control scrapes away the larvae hidden in the bark line layer in autumn to reduce the overwintering larvae. Saw or cut off the dead trees and branches, and clear the orchard and burn it.

2. Drug control from June to August, it was sprayed with 1500 times diluted with 80% dichlorvos EC.

4. Hawthorn butterfly

1. Artificial control of Hawthorn trees from defoliation to sprouting in early spring, combined with cutting and removing leaf sacs in winter and spring, concentrated elimination of overwintering larvae in order to reduce insect pests.

2. Spraying during the dormancy period of overwintering larvae and egg incubation period, spray Hawthorn tree with 10% permethrin EC diluted 2000ml 3000 times, or 50% fenitrothion EC diluted 1000Mel 1200 times.