Recently, because of the high temperature and drought, the spiders in orchards in the area of ​​Yintai County have been relatively serious. According to recent surveys of some orchards in this region by the Plant Protection Station of Yintai District, the average number of insects per leaf is 6.8, and the average number of single-leaf insects in severe orchards is 15.2.

The red spiders in the Orchard area are mainly Hawthorn spiders and Red spiders. Hawthorn spiders clustered mainly on the back of the leaves, have spear knot net habits, initially concentrated in the internal hazards of fruit trees, with the increase in the amount of maggots, transfer and spread to the outside world. At the initial stage of leaf damage, light green spots appeared on the surface, and then expanded into pieces. When the leaves were seriously damaged, the leaves became pale and burnt. The apple red spider mainly feeds on the back of the leaves of young leaves. The females become more active and most of them are harmed by the positive activities of the leaves. Generally, they are not spun. In early stages, many yellow-white spots appeared in the damaged leaves, which turned grayish green in the later stages. In severe cases, the leaves were gray, hardened and brittle.

Control methods: (1) 1.8% abamectin 4000-5000 times spray; (2) 15% Pills 1500-2000 times spray; (3) 5% nisolate EC spray 2000 times; ( 4) 20% of the 20% Suspension Net Suspension Spray.

Medical Wound Plaster

Adhesive Wound Dressing,Medical Small Wound-Care Plaster,Medical Waterproof Transfusion Wound Plaster,Medical Elastic Adhesive Aid-Band

Surgimed Medical Supplies Co.,Ltd , https://www.surgimedcn.com