Weed plants which grow on other plants without deriving nutrients from them are called
Sedges
Epiphytes
Decomposers
Saprophytes
Correct answer is B
No explanation has been provided for this answer.
The following problems are likely to be caused by insects except
Loss of leaves of crop plants
Rottening of cobs in storage
Transmission of viral diseases
Reduction of grains in storage to powder
Correct answer is B
No explanation has been provided for this answer.
Viral diseases of crop plants are best controlled by
Planting resistant varieties
Applying fungicides
Applying insecticides
Flooding farmlands
Correct answer is A
No explanation has been provided for this answer.
Most viral diseases of plants are transmitted by
Wind
Rain
Insects
Rodents
Correct answer is C
No explanation has been provided for this answer.
Streak disease of crop commonly attacks
Millet
Sorghum
Maize
Rice
Correct answer is C
No explanation has been provided for this answer.