Q8 of 465 Page 45

The aphid is a pest of ...

Mustard plant

Aphid is a lice that destroys the mustard plant and sucks its nectar.


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6

...... is a method of control of pest or weed in which one living organism is used to control another living organism is used to control another living organisms.

 7

Organic materials that are added to soil of crop field to improve its physical conditions are called ....

 9

…… climate is more congenial for infestation of weeds, insect-pests and diseases.

 10

Growing two or more crops but in the definite row pattern is known as .....