EVERYDAY SCIENCE

Detailed explanation-1: -These include aphids, whiteflies and scale insects. Apart from weakening the plant, they encourage the growth of sooty mould on the honeydew the insects produce, which cuts out the light and reduces photosynthesis, stunting the plant’s growth. They often transmit serious viral diseases between plants.

Detailed explanation-2: -Insect pests are the main sources of biotic stress on crops. There are hundreds of insects that can cause serious damage to crops and are controlled by chemical pesticides, which are the main sources of pollution and cause the development and progression of a number of health problems in humans and animals.

Detailed explanation-3: -Aphids. Several species of this sap-sucking, winged pest exist. You’ll find aphids in green, black, yellow or red. They attack edible and ornamental plants, including garden roses, causing stunted growth, curling and yellowing leaves, and a honeydew buildup that leads to black, sooty mold.

Detailed explanation-4: -When millions of locusts descend on a crop, they destroy everything. The desert locust is considered the most destructive migratory pest in the world and a single swarm covering one square kilometre can contain up to 80 million locusts.

Detailed explanation-5: -1/11. 10 most deadly bugs that destroy crop production. Text: Nidhi Nath Srinivas, ET Bureau. 2/11. Stem borer. 3/11. Bollworm. 4/11. Thrips. 5/11. Pod sucking bugs. 6/11. Rootborer. 7/11. Weevil. 8/11. Mealybugs. More items •31-Mar-2013