Question

It is the common observation that after a plant has sprayed a heavy dose of insecticide yellowish areas develop on the leaves. investigation show that cells have died.since insecticide spray is not poisonous to plants ,try to give reasons for the death of these cells

Answer 1

Due to the spray of heavy dose of insecticide on the leaves.

Answer 2

Answer:

There are two reasons for so happening.

Explanation:

1. The insecticides act like oils, which cut air supply. When insecticides are sprayed, they also drop on the stomata and cut much of their CO2 supply. The leaves need CO2 to make food and thus, it affects them badly. When plants don't process food, they gradually die. So, in this scenario, you can consider the yellowness as the beginning of the plant's slow death.

2. Athough insecticides are not poisonous, they still have toxic chemicals which affect the chlorophyll in the leaves. this results in the leaves losing their green colour.