Chemical Analysis Of Three Acaricides And Toxicological Properties Against Tetranychus Urticae Koch.

Abstract

The stability of three pesticides (Pyridaben 20% WP, Spirozed 25% EC, and Actara 25% WG) was examined. For 14 days, the tested acaricides were kept at 54±2 °C. During the storage period, samples were taken after 1, 3, 7, and 14 days to deterimine the active ingredient, physical properties, fingerprint (GC/MS), and toxicological qualities of Tetranychus Urticae. According to the data, the half-lives of the three acaricides were utilized. Data showed that the half-life of in three acaricides used were 28.42, 61.46, and 662.09 respectively in Pyridaben, Spirozed, and Actara. From this data, we conclude that Actara25% WG is more stable than Spirozed 24% WP than Pyridaben 20% EC. According to FAO specifications, samples conform to the specifications in the physical properties. The effect of pyridaben for 14 days storage in 54° of against T. urticae by (1,10,25 and 50 ppm) were (27, 29,5, 2.7,5, and 26,5) effect of Actara for 14 days storage in 54C of against T. urticae by (1,10,25 and 50 ppm) were (80, 87, 83, and 80)% produced respectively % mortality. The estimated lethal concentration value for LT was (79 μl L-1 air) in 50 ppm Actara effect of Spirozedfor 14 days storage in 54 ± 2 °C of against T. urticae by (1,10,25 and 50 ppm) were (70, 70, 61, and 60) produced respectively % mortality, the effect of Actara for 14 days storage in 54 ± 2 °C of against T. urticae by (1,10,25 and 50 ppm) were (80, 87, 83, and 80)% produced respectively % mortality. The estimated lethal concentration value for LT was (79 μl L-1 air) in 50 ppm. This research aims to investigate the degradation of three acaricides (Pyridaben 20% WP, Spirozed 24%EC, and Actara25% WG) after storage 14 days at 54± 2°Cwe found thatActara 25%WG is more stable than Spirozed 24% WP Pyridaben 20% EC. Also, toxicity studies showed that Actara 25%WG was the most lethal effect against mites after 14 days of storage this cleared that some active ingredients are more resistant against high-temperature storage. Also clear that some pesticides such as Actara are more resistant against high-temperature storage.