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What food do thirteen star ladybugs eat?

2022-02-08 / 448 Read

Thirteen star ladybugs are Coleoptera Entomidae, body length 6.0-6.2 mm, body width 3.4-3.6 mm, head black, but front edge yellow, compound eyes black, scutellum black or brownish yellow, my country is distributed in Beijing, Jilin, Hebei, Shandong, Henan , Xinjiang, Zhejiang and other places, let's take a look at what food the 13-star ladybug eats!

What

What food do thirteen star ladybugs eat?

. Thirteen three-star lady beetles are beneficial insects both larvae and adults. They mainly prey on cotton aphid, locust aphid, wheat aphid, bean long tube aphid, wheat twocha aphid, millet aphid, lotus constricted tube aphid and other pests. Guanzhong area 6. Adults occurred in cotton fields in July, and occurred in wheat fields in May in northern Shaanxi.

What

Is ladybug a beneficial insect or a pest?

. There are many kinds of ladybugs, which can be divided into carnivorous ladybugs and herbivorous ladybugs in terms of feeding habits. Adult carnivorous ladybugs will prey on any insects with tender flesh, and they like to eat aphids the most, such as the seven-star ladybug. Most species of phytophagous ladybugs feed on Solanaceae, Cucurbitaceae, and Compositae plants, such as Potato Ladybug and Solanum coccinella, which collectively eat the leaves of eggplant and potato and are regarded as pests.

What

Life habits of thirteen star ladybugs

1. First age: body length 2~3 mm, the body is all black, from the midthorax to the eighth abdominal segment, each with 6 hairy warts.

2. Second age: Body length is 4 mm, head and feet are all black, body gray-black, the left and right rear corners of prothorax are yellow, there are 6 thorn warts on the back and sides of each abdominal segment, and 2 thorn warts on the back and left of the first abdominal segment are yellow, thorny black. The yellow spots on the back of the fourth abdominal segment are not obvious, and the rest of the thorns are black.

3. Three Ages: Body length 7 mm, gray-black body, black head, feet, thoracic dorsal plate and abdominal end buttocks, yellow spots on the anterior and posterior corners of the prothorax and dorsal plate, and thorn warts on the left and right sides of the first abdomen Orange, black thorns. Two spiny warts on the dorsal side of the fourth section are slightly yellow, and the rest are black.

4. Four Ages: The body is about 11 mm long, gray-black, with orange-yellow spots on the anterior and posterior corners of the pronotum, and orange-yellow spots on the left and right spiny warts and lower spinous warts in the first and fourth abdominal segments. Wart black.

5. Pupa stage: Body length 7 mm, width 5 mm, yellow body, 4 black spots on the front edge of the pronotum, 2 triangles in the center, 2 black spots in the center of the rear edge of the pronotum, and 2 black spots on the corners of both sides . There are 2 dark spots on the mesothorax. There are 4 dark spots on the left and right sides of the back of the abdomen section 2 to 6. End of abdomen with black molting of last instar larvae.