Answer :

The ways by which the insects attack the crop plants are:

(i) The chewing insects destroy all sorts of crop plants. They cut the root, stem and leaf of the crop plants by the help of their chewing mouthparts.


(ii) Sucking insects suck the cell sap from various parts of the plant. They make fine punctures in the skin of plants with their needle - like, hollow beaks, suck the sap and leave the crop damaged.


(iii) The internal feeders live inside the plant parts. They make holes in the developing grains and eat it completely or partially.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
The Demand of Increasing PopulationThe Demand of Increasing PopulationThe Demand of Increasing Population41 mins
People As ResourcesPeople As ResourcesPeople As Resources53 mins
NCERT | People as ResourcesNCERT | People as ResourcesNCERT | People as Resources51 mins
NCERT | Natural Resources - IINCERT | Natural Resources - IINCERT | Natural Resources - II43 mins
NCERT | Natural Resources - INCERT | Natural Resources - INCERT | Natural Resources - I50 mins
Eliminating India's PovertyEliminating India's PovertyEliminating India's Poverty48 mins
Pair of AnglesPair of AnglesPair of Angles29 mins
Let's learn about PalampurLet's learn about PalampurLet's learn about Palampur47 mins
Poverty in IndiaPoverty in IndiaPoverty in India51 mins
Solving most Important QuestionsSolving most Important QuestionsSolving most Important Questions43 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Give one example Dr. P.S. Verma & Dr. V.K. Agarwal - Biology

Cattle husbandry NCERT Science - Exemplar

Name one bacteriaDr. P.S. Verma & Dr. V.K. Agarwal - Biology

What is artificiaDr. P.S. Verma & Dr. V.K. Agarwal - Biology