Piercing and sucking insect pests possess? by Sunday | Jan 18 | Agricultural Science WAEC | 0 comments A. Maxillae B. Mandibles C. Labrums D. Proboscis Correct Answer: Option D D. Proboscis Users Also Read These:Biological control of insect-pests of crops is…Which of the following insect pests of crops is…Pests of crops that feed by piercing and sucking…Biological control of insect pests of crops can best…When two flat plate conductors are arranged in such…