CHEMICAL AND PHYSICAL STABILITY OF CARBAMATE INSECTICIDES ALONE OR WHEN MIXED WITH FOLIAR FERTILIZERS UNDER THE RECOMMENDED KNAPSACK SPRAYING RATE WITH NILE WATER

Document Type : Original Article

Author

Central Agricultural Pesticides Laboratory, Agricultural Research Centre, Dokki, Giza, Egypt

Abstract

Successful mixtures between foliar fertilizers and carbamate in­secticides should pass through physical and chemical stability tests. The results showed that the carbamate insecticides Lannate, Larvin and-Sevin alone or in combination with the foliar fertilizers Bayfolan, Bayfolan super, Metalosate, Actigil, Ligatrin and Pholaz-chelated, had passed suc­cessfully through the physical stability. Results of chemical stability re­vealed that diluted pesticides if are left in the Nile water for 24 h, they undergo different rates of degradation. The fertilizers Bayoflan , Metalosate, Actigil and Ligatrin reduced degradation of carbamate insecticides when mixed with them in the presence of Nile water as a diluting agent_This was more evident with Bayflan Super/ Larvine mixture. The stability of cabamate insecticide / Foliar fertilizer mixtures left in Nile water for 24h was more evident than with insecticides alone. However the foliar fertilizer 3-pholaz caused deg­radation for all carbamates studied.

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