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Effect of mixture of Eichhornia, Ipomoea and Acorus leaf powder on adult mortality of Rhizopertha dominica (fab) infesting rice in different ratio 2:1:2

Ravindra Kumar Sharmaa* & O.P. Singhb
aDepartment of Zoology, B.R.A.B.University & SJS Senior Secondary School, Tetaria, East Champaran, Bihar, India
bDepartment of Zoology, B.R.A.B.University, & Principal, R.D.S. College, Muzaffarpur, Bihar, India
Received : 17th December, 2019 ; Revised : 25th February, 2020

Abstract: – Mixture of plant products like Eichhornia, Ipomoea and Acorus leaf powder in different ratio 2:1:2 Showed remarkable effect on Mortality, Survival & growth of adult R.dominica in store rice. Rice was weighted 100 gm. separately taken in 6” x 2” glass container. Standard Eichhornia, Ipomoea and Acorus leaves powder where taken from laboratory stock in 2:1:2 ratio & mixed with grains separately & shaken for 15 minutes. Five pairs of fleshly emerged test insect were also taken & released into each replicate. All experiments were set at same temperature and relative humidity 60-70% with the equal degree of ventilation. Six doses (0.5gm,1gm,1.5gm,2gm, 2.5gm & 3gm) such treatment while there replicates with untreated grains were installed for control. The observation showed on adults was remarkable effect in Mortality & delayed emergence.

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