symptoms of leaf damage by aphis gossypii, close up

symptoms leaf damage aphis gossypii close infestation aphid green lice plant insect greenfly pest colony parasite vermin agriculture aphids detail diaspididae disease eat foliage ill infection insecticides macro micro mites selective focus nature parasites sick spoiled crop treatment drone fly aphidoidea blackflies cultivated destructive aphidina aphidomorpha arthropoda swarm insects aphididae damaged leaves