Are all greenhouse pest insects

No

Explanation:

Not all greenhouses have pest insects because there can be butterflies in a greenhouse to pollinate the plants and bees help pollinate too. There are some pest insects though such as the greenhouse white fly, Encarsia Formosa, and the mealybug

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.

answer///multiple alleles;