Effects of Spherosomes on Degradation of Pretilachlor and Esprocarb in Soil

Abstract

The fate of pretilachlor and esprocarb in soil with or without spherosomes was investigated for 71 days. The estimated half-lives of pretilachlor in nonsterile soil with and without spherosomes were calculated to be 35.6 and 54.3 days, respectively, while those of esprocarb in nonsterile soil with and without spherosomes were 35.5 and 44.8 days, respectively. The degradation of these pesticides appeared to be essentially due to the biological activity of the soil. Spherosomes should enhance the rate of pretilachlor and esprocarb destruction.

Persistence behaviour of pretilachlor in puddled paddy fields under subtropical humid climate

“…Most of the available literature has been confined to laboratory dissipation studies (Ismail and Handah 1999;Fajardo et al 2000a;Murata et al 2004;Adachi et al 2007), and a few have reported the dissipation of pretilachlor under field conditions of Japan (Fajardo et al 2000b) and Italy (Vidotto et al 2004). In India, limited research has been conducted under coastal ecosystem (Dharumarajan et al 2011) and alpine climate (Sharma et al 2013) whereas there are literature gaps about pretilachlor behaviour in subtropical humid agroclimatic conditions.…”

Effect of Spherosomes on Control of Aphis gossypii Glover in Cucumbers Using Imidacloprid

“…We previously reported the adsorption properties of spherosomes. [12][13][14] On the basis of the present data, it seems more likely that spherosomes might have a role as adsorbent materials for removal of imidacloprid in soil. Thus, spherosomes could efficiently reduce the uptake of imidacloprid in cucumbers by about 1/5.…”

Ultimate fate, transformation, and toxicological consequences of herbicide pretilachlor to biotic components and associated environment: An overview

“…The large herbicidal persistence in soil directly influences the soil microorganisms, which in turn affects the plant growth (Raipuria & Parveen, 2016). A study on 14 C-labeled pretilachlor in sterilized and non-sterilized soils showed that microorganisms enhanced the degradation of pretilachlor (Kotoula-Syka et al, 1997) (Adachi et al, 2007). On the other hand, in sterile soil, pretilachlor amount remained almost unvaried.…”