Importance of biological control against apple pests


Figure 1. Seven-spotted cockroach - life forms of Coccinella septempunctota L


Download 209.5 Kb.
bet2/5
Sana26.02.2023
Hajmi209.5 Kb.
#1232941
1   2   3   4   5
Bog'liq
Tezis 1 Abubakir

Figure 1. Seven-spotted cockroach - life forms of Coccinella septempunctota L
Coccinella septempunctota L. takes an important place in this regard. It is an insect 6-8 mm in size, with 7 black circular spots on its hard wings. Beetles fly well, quickly find aphid colonies, feed and lay their yellow shiny eggs here in heaps, small black six-legged larvae also feed on aphids. A colony of aphids disappears in the place where it is hungry. In addition to Cocinella bipunctata L., it is possible to include two-pointed cocinella. 3-4 mm, slightly smaller than khanqizi, less quantitative density.
Hanging earring - Syrphis ribesii. L.
It is a two-winged black insect with a yellow band on the abdomen. Compared to a fly, it is more like a wasp. Body length 11 - 12 mm. the female form finds a colony of aphids and lays eggs there, yellow-green legless larvae emerge from the eggs. From the outside, it looks like a snake. Larvae are greedy and feed on more than 2,000 nectaries during their lifetime.
Golden eye - Chrysopa perla. L.
Delicate blue is an insect with blue, golden eyes, long whiskers and 4 clear wings. Body length reaches 12 - 15 mm. It flies slowly and lays its eggs on a long stem. The hairy 6-legged larvae that hatch from the eggs use their sharp jaws to hunt for sap very quickly. They suck the sap and leave only the upper part. Aphid skin accumulates on the larva's shoulder and uses it to form a mushroom. Adult forms overwinter. If they sense any danger, golden eyes protect themselves by giving off a peculiar smell.
Scabies - Celidopagan diadema. G'.
A predator is a two-winged insect that looks like a fly from the outside. The male is black, with clear wings, the female is brown, with a yellowish-brown pattern on the chest. The body length of the insect is 18 - 22 mm. It injects its body with its long proboscis and feeds by sucking the next lymph blood. It can be found mainly in leaves and soil.
Beshiktebratar - Loptetrum quadrimaculotum. L.
It is a large predatory insect, with large eyes, a gnawing mouth apparatus, wings 2 - the underside is clear, veins are visible. Judda flies fast, feeds on insects during flight. Larvae live in puddles and feed on aquatic insects.

Download 209.5 Kb.

Do'stlaringiz bilan baham:
1   2   3   4   5




Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©fayllar.org 2024
ma'muriyatiga murojaat qiling