What kind of food do thirteen-star ladybugs eat?

The thirteen-star lady beetle is an insect of the family Coleoptera, with a length of 6.0mm and a width of 3.4mm. The head is black, but the leading edge is yellow, the compound eye is black, and the shield is black or brownish yellow. China is distributed in Beijing, Jilin, Hebei, Shandong, Henan, *, Zhejiang and other places. Let's take a look at what kind of food thirteen-star lady beetles eat.

What kind of food do thirteen-star ladybugs eat?

The 13-star lady beetle is a carnivorous insect. The 13-star lady beetle is beneficial to both larvae and adults, which mainly preys on cotton aphid, locust aphid, wheat aphid, bean aphid, wheat aphid, millet aphid, lotus aphid and other pests. Adults occurred in cotton fields in June and July in Guanzhong area and in wheat fields in northern Shaanxi in May.

Are ladybugs beneficial bugs or pests?

Ladybugs are both pests and beneficial insects. There are many kinds of ladybugs, which can be divided into carnivorous ladybugs and herbivorous ladybugs. Adult carnivorous ladybugs will prey on any fleshy and soft insects, and their favorite food is aphids, such as seven-star ladybugs. Most species of plant ladybugs feed on plants of Solanaceae, Cucurbitaceae and Compositae, such as potato ladybug and eggplant 28 lady beetle, which collectively eat eggplant and potato leaves and are regarded as pests.

The living habits of the 13-star lady beetle

1. One-year-old: the body length is 2mm to 3mm, the body is all black, from the middle chest to the eighth abdominal segment, each section has 6 warts.

2. The second age: the body length is 4 mm, the head and feet are all black, the body is grayish black, the left and right posterior horns of the forechest are yellow, 6 condyloma acuminatum are found on the back and side of each section of the abdomen, the back of the first abdominal segment is yellow, and the thorns are black. The condyloma acuminatum on the back of the fourth ventral segment is not obvious, and the rest of the warts are black.

3. Three-year-old: the body length is 7 mm, the body is gray and black, the head, foot, chest dorsal plate and ventral gluteal plate are black, there are yellow spots in the anterior and posterior corners of the anterior chest dorsal plate, the first and right side of the abdomen is condyloma orange and orange, thorn black bag. Section IV, the dorsal 2 thorn warts are slightly yellow, and the rest are black.

4. Four-year-old: the body length is about 11 mm, the body is grayish black, the anterior and posterior horns of the anterior chest dorsal plate have orange spots, the first and fourth segments of the abdomen have orange spots on the left and right sides and the inferior side of the abdomen, and the rest of the warts are black.

5. Pupal stage: the body length is 7 mm, the width is 5 mm, the body is yellow, there are 4 black spots on the front edge of the anterior chest dorsal plate, 2 triangular in the center, 2 black spots in the center of the posterior edge of the anterior chest back plate, and 2 black spots on both sides. There are 2 black spots in the middle chest dorsal plate. There are 4 black spots on the back of abdominal segments 2 ~ 6. Black molting at the end of the abdomen with the last instar larvae.