Possible Clues:

• Fruit tree pest
• Sap-sucking insect
• Blame guy for disruption — pest!
• Petty infection left by small pest
• Plant-eating scale insect
• Pest in a blue gym slip
• Object of terror on ear of maize is pest in the hothouse
• Scale insect
• Hothouse pest has food backed by universal gravity
• A bugle with my confounded greenhouse pest