Biology of the Rhododendron Gall Midge, Clinodiplosis Rhododendri (Felt) (Diptera: Cecidomyiidae), on Long Island |
Common terms and phrases
25 August acephate Adult emergence aestivating antennae Barnes capsule of Clinodiplosis cecidomyiids cervix chlorotic areas Clinodiplosis rhododendri cocoon Coutin and Harris damaged leaves Dasineura deposited diapause diazinon Diptera Donald Rudolph dormant flower buds Eggs of Clinodiplosis emergence traps enlarging vegetative buds exocephalic apodemes expanding leaf feeding female fenvalerate Field planting Gagné gall midge damage gall midge larva higher gall midges host plant insect pin insecticides instar June Kenneth Graham laboratory labrum large number larva of Clinodiplosis larvae collected larvae in moist larval head capsule Long Island mature larva moist sand multivoltine natural enemies necrotic lesions nursery observed opened vegetative buds ornamental plants Overwintering prepupae oviposition parasitized larva successfully parasitoids peak emergence pest placement of mature planting of Rhododendron Platygaster sp prepupae pupae pupate random sample reported Rhododendron catawbiense hybrid rhododendron gall midge rolled edge rolled leaf margins setae soil spatula sternalis spiracle spring swollen vegetative bud young leaves