Why do insect-pollinated flowers have sticky/ spiky pollen

Insect-pollinated flowers have sticky or spiky pollen grains to that they stick to the insect bodies [ so that when an insects visits another flower, the pollen grain will easily land on the stigma allowing pollination and fertilisation to take place ].

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.