Chemical composition and toxicity of some Agro waste-derived insecticides against Angoumois grain moth, Sitotroga ceralella (Olivier) [Lepidoptera: Gelechiidae] infesting stored paddy grains

Michael Olufemi Ashamo; Kayode David Ileke; Ayomiposi Idowu Onasile

doi:10.1186/s42269-020-00473-y

Bulletin of the National Research Centre

Table 4 Dose–response of adult S. cerealella treated with agro waste extracts

From: Chemical composition and toxicity of some Agro waste-derived insecticides against Angoumois grain moth, Sitotroga ceralella (Olivier) [Lepidoptera: Gelechiidae] infesting stored paddy grains

Agro waste treatments extracts	Conc. (ml/20 g paddy)	Mean % mortality ± SE after
Agro waste treatments extracts	Conc. (ml/20 g paddy)	24 h	48 h	72 h	96 h
Rice husk	0.1	33.67 ± 2.33^b	43.33 ± 3.67^bc	43.33 ± 3.67^bc	50.00 ± 3.88^b
Groundnut pod		40.00 ± 3.88^de	50.00 ± 3.88^cd	56.33 ± 3.67^bc	60.67 ± 3.33^c
Cowpea pod		46.67 ± 2.33^cd	56.67 ± 3.33^cde	63.67 ± 3.33^cd	66.33 ± 3.67^cd
Maize cob		36.33 ± 2.67^bc	46.67 ± 3.33^b	53.33 ± 3.33^b	56.67 ± 3.33^b
Rice husk	0.2	36.67 ± 2.33^bc	46.67 ± 3.33^cde	53.67 ± 3.33^bc	56.67 ± 3.33^cde
Groundnut pod		46.33 ± 3.67^def	56.33 ± 3.67^def	60.00 ± 3.88^cd	66.33 ± 3.67^cde
Cowpea pod		50.00 ± 3.88^cde	60.00 ± 3.88^def	66.33 ± 3.67^de	70.00 ± 3.88^def
Maize cob		40.00 ± 3.88^bcd	50.00 ± 3.88^cde	56.67 ± 3.33^bc	60.00 ± 3.88^bcd
Rice husk	0.3	43.33 ± 3.67^def	50.00 ± 3.88^def	56.33 ± 3.67^cde	63.67 ± 3.33^cde
Groundnut pod		50.00 ± 3.88^efg	60.00 ± 3.88^efg	66.67 ± 3.33^efg	70.00 ± 3.88^def
Cowpea pod		53.67 ± 3.33^fgh	63.67 ± 3.33^efg	70.00 ± 3.88^efg	73.67 ± 3.33^efg
Maize cob		46.33 ± 3.67^efg	56.67 ± 3.33^efg	60.00 ± 0.88^def	66.67 ± 3.67^cde
Rice husk	0.4	46.67 ± 3.33^fgh	53.67 ± 3.33^fgh	63.67 ± 3.33^fg	73.33 ± 3.67^fgh
Groundnut pod		53.33 ± 3.67^fgh	63.33 ± 3.67^fgh	73.33 ± 3.67^gh	90.00 ± 3.88^hi
Cowpea pod		63.33 ± 3.67^gh	76.67 ± 3.33^ghi	90.00 ± 3.88^ghi	100.00 ± 0.00ⁱ
Maize cob		50.00 ± 3.88^gh	60.00 ± 3.88^fgh	66.33 ± 3.67^fg	76.33 ± 3.67^fg
Rice husk	0.5	66.67 ± 3.33^h	80.00 ± 3.88^ij	86.67 ± 3.33^hi	96.67 ± 3.33^hi
Groundnut pod		73.33 ± 3.67^hi	93.67 ± 3.33^jk	100.00 ± 0.00ⁱ	100.00 ± 0.00ⁱ
Cowpea pod		83.33 ± 3.67ⁱ	100.00 ± 0.00^k	100.00 ± 0.00ⁱ	100.00 ± 0.00ⁱ
Maize cob		70.00 ± 3.88^h	83.67 ± 3.33^j	93.33 ± 3.67^hi	100.00 ± 0.00ⁱ
Control		0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a

Mean followed by the same letters within the same column are not significantly different (p > 0.05)

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