Incidence of a New Pest, the Cotton Mealybug Phenacoccus solenopsis Tinsley, on Sesame in North Ethiopia

Table 6

Means of cotton mealybug severity for the different sesame field parts with 95% confidence limits.

Farm part		Severity; (Grades 1–4)	s.e.	CV	95% confidence limits
					Lower	Upper
Center	60	1.42	0.37	25.7	0.69	2.13
Kitchen surrounding	60	2.99	0.14	4.70	2.71	3.26
Road side	60	2.89	0.13	4.48	2.63	3.14
Total	180