Influence Of sowing dates On incidence and intensity Of bacterial blight Of cotton caused by xanthomonas axonopodis Pv. malvacearum

Manipulation of sowing dates is an obviously good strategy to minimize the bacterial blight disease caused by Xanthomonas axonopodis pv. Malvacearum (Smith) dye with relation to environmental factors. The bacterial blight appeared to a level of 5.37 per cent incidence with 2.35 per cent intensity in 31^st (MW) in 27^th June sown crop while (July) 7^th and 17^th 2007) sown plot disease appeared in 32^nd (MW) The level of incidence was 6.67 and 1.66 per cent and intensity 2.33 and 0.41 per cent respectively. The bacterial blight disease increased progressively and reached its peak i.e. 53.67 per cent incidence with 22.35 per cent intensity in 42nd (MW) in l^st sown plot. Incidence and intensity reached its maximum in 42^nd (MW) Bacterial blight incidence and intensity was maximum in 1^st sown plot than 2^nd and 3^rd sown plot and disease appears a week before than late sown lot. Maximum temperature and blight sunshine hours (BSH) was found positive and significantly associated with in crease in disease.