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J. Crop Prot
The cotton bollworm, Helicoverpa armigera (Hübner), which is known as one of the most important economic pests, can cause severe damage to different crops in Iran and many countries of the world. The effect of five maize hybrids: SC260, SC500, SC700, SC704 and DC370 on lysozyme activity in the hemolymph of sixth instar of H. armigera using lytic zone assay and its association with some fitness parameters of this pest was studied in growth chamber (25 ± 1˚C, 65 ± 5% RH and a photoperiod of 16:8fatcat:ja6y3qtyerg73bo4svse7a3oge