International Journal of Horticulture, 2017, Vol.7, No. 9, 64-75
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The severity of damage and weight loss of the protected cowpea was done by counting the number of seeds with
hole and weighing them after no emergence of adult was observed. The percentage seed damage and weight loss
were calculated using the formulae below:
5.5 Statistical analysis
Data obtained were subjected to One-Way analysis of variance and means were separated with Duncan’s Multiple
Range Test. Also, data obtained from mortality were subjected to Probit analysis to calculate the lethal
concentration required to achieve 50 and 95% mortality within 72 h (LC
50
and LC
95
). General Linear Model
(GLM) was used to determine the interactive effect of the plant part used, extraction methods and concentrations.
Linear regression analysis was done to determine interaction between adult mortality and oviposition as well as
between adult emergence and weight loss.
Authors’ contributions
Both authors designed and carryout the research, author 2 carryout the statistical analysis while the two authors wrote the paper.
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