Evaluating the impact of jatropha oil extract against the Varroa mite, Varroa destructor Anderson & Trueman (Arachnida: Acari: Varroidae), infesting honeybee colonies (Apis mellifera L.)

Egyptian Journal of Biological Pest Control

Table 5 Effect of different concentrations of jatropha oil extract on the honey and pollen grains stored in the tested honeybee colonies

No. of treatment	Area of honey (inch²)/colony					F value	Area of pollen grains (inch²)/colony					F value
	Jatropha oil concentrations					F value	Jatropha oil concentrations					F value
	1%	2%	5%	10%	Control		1%	2%	5%	10%	Control
Before treatment	95.00 a	82.50 a	72.50 a	85.00 a	95.00 a	0.66^NS	0.50 a	0.00 a	0.25 a	0.50 a	0.50 a	0.80^NS
First treatment	12.50 a	24.50 a	38.25 a	18.25 a	23.00 a	1.16^NS	1.00 a	1.25 a	1.00 a	1.00 a	1.00 a	0.27^NS
Second treatment	11.00 a	7.75 b	8.25 b	8.75 ab	6.75 b	3.84*	1.50 a	1.25 a	1.00 a	1.25 a	1.25 a	0.35^NS
Third treatment	28 a	27 a	28 a	27 a	27 a	0.10^NS	1.75 a	1.25 a	1.50 a	1.50 a	1.75 a	0.42^NS
Fourth treatment	126.50 a	93 a	96 a	111 a	96 a	1.55^NS	11.25 a	9.75 a	9.00 a	9.75 a	6.75 a	1.20^NS

NS non-significant means in a row with dissimilar letters differ significantly at 0.05 level of probability