Organic chemistry

PEST analysis

Exigua

Mathematics

Mathematical physics

Agronomy

Biology

Gene

Environmental chemistry

Pesticide

Chemistry

Beet armyworm

Earth (classical element)

Spodoptera

Toxicology

Recombinant DNA

Botany

Toxicity

Biochemistry

Journal of Entomology

Background and Objective: Insecticidal properties of diatomaceous earth and kaolin as eco-friendly inert powders have been studied on some of the most important agricultural pests in recent years.This study investigated the toxicity of kaolin and diatomaceous earth (Sayan ® ) against Spodoptera exigua.Materials and Methods: In the present study, contact toxicity of kaolin and diatomaceous earth (Sayan ® ) as environmentally compatible materials was determined against the larvae of beet armyworm, Spodoptera exigua, after 24, 48 and 72 h exposure times.Results: Higher mortality was observed with diatomaceous earth compared to kaolin on the S. exigua larvae.The highest mortality rate (59.25%) was observed with a concentration of 20% from diatomaceous earth after 72 h and the lowest mortality rate (18.12%) was detected with a concentration of 5% kaolin after 24 h exposure times.In fact, a positive correlation was observed between increasing the concentration of both compounds and the exposure time with pest mortality.Conclusion: According to the results of this study, kaolin and diatomaceous earth can be considered as suitable alternatives for chemical pesticides in the management of S. exigua.

Diatomaceous Earth and Kaolin as Promising Alternatives to the Detrimental Chemicals in the Management of Spodoptera exigua