Occurrence law: Occurs in most parts of the country. The larvae eat the cortex and xylem of branches and stems, and the wormholes are irregularly curved, and reddish-brown sawdust-like worm dung is discharged from the wormhole. The defecation hole often flows out of glue, and the growth of the injured plant is weakened, and even dead trees.
Control methods: 1. During the adult occurrence period from June to July, a peach orchard generally does not exceed more than 10 days and is relatively tidy. During this period, the adult worms will be repopulated and the effect will be greater. People in Huailai County, Hebei Province discovered that the red-necked longhorned beetles moved from under the canopy to the base of the trunk at 12 to 13 o'clock and rested in groups. The adults were captured manually at noon or afternoon for several days, and the damage could basically be controlled. 2. When checking the trunk for fresh insect dung from September to October, immediately use a knife or scissors to dig out the small larvae under the skin and eliminate them. 3. Before adults occur, apply white on the trunk and main branches to prevent adults from laying eggs; whitening agent: use 10 parts quicklime + 1 part sulfur powder + 10 parts water + a little salt. 4. Put alumina tablets (containing 0.075 grams of active ingredients) or dichlorvos cotton balls (20 times) into each wormhole opening, and then seal it with yellow mud to kill the larvae.
Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
Erythritol For Yogurts,Etherol Sugar Substitute,Polyol Erythritol,Erythritol Vegan
Ningxia Eppen Biotec CO.,LTD , https://www.nxeppen.com