Coccinella 第1页

STUDY ON THE RELATIONSHIPS AMONG WHEAT APHIDS, NATURAL ENEMY AND YIELD LOSS OF WHEAT AND THE ACTION THRESHOLD OF APHIDS Flight ability of wintering generation lady birds Coccinella septempunctata L. and Harmonia axyridis Pall Selective toxicity of insecticides between Aphis citricola and Coccinella septempunctala Effect of plant extracts and some biorational insecticides on egg hatch, survival and predation rates of Menochilus sexmaculata (Fabrieius) and Coccinella trasversalis Fabricius:the key natural enemies of cruciferous vegetable aphids in south Chin ON THE APPLICATION FEASIBILITY OF PUPAL TRICHOGRAMMA FROM ARTIFICIAL EGGS FORMASS REARING OFCOCCINELLA SEPTEMPUNCTATA LINNAEUS Toxicity and selection of insectivides to Coccinella septempunctata（L.）and Brevicoryne brassicae（L.） A STUDY ON PREDATION OF Coccinella septempunctata ON DIFFERENT RANGES OF STARVATION