Study of gonado somatic index of 2nd-8th days essential oil treated male Euschistus servus

ABSTRACT

Euschistus servus (Hemiptera: Pentatomidae) are important insect pests of crops. Stink bug feeding reduces yields, lowers crop quality, induces delayed maturity and wounds tissues allowing for pathogen entry. Present investigation showed effective control of brown stink bugs with essential oils as evaluated by GSI parameter. The Cassia fistula leaf and flower essential oils treatment decreases the GSI in male adults of Euschistus servus. The results on the GSI in the present investigation indicate that toxic activity of essential oil was in the order: Cassia fistula leaf > Cassia fistula flower.

Keywords: Euschistus servus, Cassia fistula, GSI.

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