What is the natural enemy of the red spider?

Red spider, also known as cotton red spider, commonly known as big spider, big dragon, sand dragon, etc., scientific name spider mite. It is widely distributed and has mixed food habits, which can harm more than 110 kinds of plants. So what are the natural enemies of red spiders?

First, what is the natural enemy of the red spider

The natural enemies of red spiders are Chrysopus sinensis, mite-eating ladybug, predatory mite, discolored ladybug, lacewing, flower bug, phytoseiid mite and so on. They play a positive role in controlling the population of red spiders. Therefore, in the control of pests, do not hurt natural enemies.

2. Chemical control methods of red spider

Use 10% bendazalin EC (such as Guoguang Hongxie) 1000 times solution or 10% Bendazalin EC (such as Guoguang Hongxie) 1000 times solution + 5.7% methylvitamin salt EC (such as Guoguang Lok) 3000 times solution after spray control, it is recommended to use twice at intervals of 7-10 days.

III. Agricultural control of red spiders

According to the biological habits of red spiders, agricultural, physical and chemical control measures can be applied.

The main results are as follows: (1) artificial control: scrape the bark and burn it centrally before the overwintering eggs hatch, and kill most of the overwintering eggs by painting white (lime water) on the trunk after scraping.

(2) according to the hatching law of overwintering eggs of red spiders and the habit of feeding and breeding on weeds first after hatching, the soil is turned over in early spring, weeds on the ground are removed, and there are no weeds in the field during the incubation period of overwintering eggs, so that red spiders die because they can't find food.

(3) physical control can be done before jujube sprouting and jujube red spiders are about to become harmful (about late April), apply non-toxic and non-dry stickworm glue to the trunk and apply a closed viscose ring with a width of about 1 cm, and apply it again in about 2 months. The effect can reach more than 95%.

(4) there are many species of jujube red spiders in the field of biological control, including Chrysopus sinensis, mite-eating ladybugs and predatory mites, among which Chrysopus chinensis population is larger and prey on jujube red spiders is larger. Protecting and increasing the number of natural enemies can enhance its control effect on jujube red spider population.

(5) the chemical control application of 4000-5000 times of mite risk (800-1000 jin of water per bottle) uniform spray, 40% diclofenac EC 1000 × 1500 times, 20% mifenjing wettable powder 2000 times, 15% dacarine EC 2000 times, 1.8% acarine EC 6000000 times can achieve the ideal control effect.