تأثير بعض العوامل الحيوية و المستخلصات النباتية في مكافحة حشرة السونة Eurygaster testudinaria (Geoffroy)‎ (hemiptera : scutelleridae)‎ على الحنطة

Abstract EN

This study was aimed to evaluate the effect of spraying fungal spore suspension of Beauveria bassiana 1 and Metarhizium anisopliae and hot and cold water extract of Sisymbrium irio and Silybum marianum plants in mortality of tortoise bugs insect Eurygaster testudineria.

and to calculate repellency and attraction percentage of the S.irio hot extract on adults of this pest.

Spore suspension of M.

anisopliae resulted in higher percentage of insects mortality 19.21% compared to 18.75% mortality that resulted from B.

bassiana 1 spore suspension.

Plant extracts of S.

irio and S.

marianum were effective on the adult insects.

Hot water plant extract of S.

irio at 10% concentration resulted in mortality of 72.41% compared to 26.66% from that treated with S.

marianum cold water extract at 5% concentration.

Attraction and repellence tests of these plant extracts showed that S.

irio hot extract had the best repellence percentage 66.66% and repellence power 168 and repellence/attraction balance of -33.33% and -95.

However, S.

marianum hot water extract had the highest attraction percentage 43.33% and attraction force 117.