TOXICITY OF CERTAIN PESTICIDES TO EGG MASSES AND SECOND LARVAL STAGE OF MELO1DOGYNE JAVANICA UNDER LABORATORY CONDITIONS.
EL–MORSHEDY, M., MAHROUS, M., GUIRGUIS, M., EL-KADY, A. (1993). TOXICITY OF CERTAIN PESTICIDES TO EGG MASSES AND SECOND LARVAL STAGE OF MELO1DOGYNE JAVANICA UNDER LABORATORY CONDITIONS.. EKB Journal Management System, 71(2), 437-444. doi: 10.21608/ejar.1993.459021
MOHAMED M. F. EL–MORSHEDY; MOSTAFA E. MAHROUS; MOKHTAR W. GUIRGUIS; ASHRAF M. A. EL-KADY. "TOXICITY OF CERTAIN PESTICIDES TO EGG MASSES AND SECOND LARVAL STAGE OF MELO1DOGYNE JAVANICA UNDER LABORATORY CONDITIONS.". EKB Journal Management System, 71, 2, 1993, 437-444. doi: 10.21608/ejar.1993.459021
EL–MORSHEDY, M., MAHROUS, M., GUIRGUIS, M., EL-KADY, A. (1993). 'TOXICITY OF CERTAIN PESTICIDES TO EGG MASSES AND SECOND LARVAL STAGE OF MELO1DOGYNE JAVANICA UNDER LABORATORY CONDITIONS.', EKB Journal Management System, 71(2), pp. 437-444. doi: 10.21608/ejar.1993.459021
EL–MORSHEDY, M., MAHROUS, M., GUIRGUIS, M., EL-KADY, A. TOXICITY OF CERTAIN PESTICIDES TO EGG MASSES AND SECOND LARVAL STAGE OF MELO1DOGYNE JAVANICA UNDER LABORATORY CONDITIONS.. EKB Journal Management System, 1993; 71(2): 437-444. doi: 10.21608/ejar.1993.459021

TOXICITY OF CERTAIN PESTICIDES TO EGG MASSES AND SECOND LARVAL STAGE OF MELO1DOGYNE JAVANICA UNDER LABORATORY CONDITIONS.

Egyptian Journal of Agricultural Research
Volume 71, Issue 2, June 1993, Pages 437-444    PDF (1.82 M)
Document Type: Original Article
DOI: 10.21608/ejar.1993.459021
Authors
MOHAMED M. F. EL–MORSHEDY1; MOSTAFA E. MAHROUS2; MOKHTAR W. GUIRGUIS2; ASHRAF M. A. EL-KADY1
1Central Agricultural Pesticides Laboratory, Agricultural Research Centre, Dokki, Giza, Egypt
2Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
Abstract
The ovicidal action of five insecticides against egg masses of. M. Javanica was carried out . Isoxation was the most toxic followed by fena­miphos, cyanofos, oxamyl and methomyl. The descending order of the ovicidal activity at the LC 90 level was the same as at the LC so level except of a switch in position between oxamyl and methomyl. This difference was discussed on the basis of the slope values of the toxicity lines. The toxicity of pesticides to the second larval stage at the LC50 level revealed that the nematicides fenamiphos and oxamyl as well as the ovicide isoxathion were the most po­tent. However cyanofos and methomyl produced moderate toxicity to the larvae.
Statistics
Article View: 1