Symptom Symptom Orobanche is popularly known as broomrape in English speaking countries, 'Tokra' in north India, 'vakumba' in Gujarat, 'bambaku' in Maharashtra, 'pokayilaikalan' in Tamil Nadu, 'bodu' or 'malle' in Andhra Pradesh. It is a flowering parasite on

Symptom Symptom Leaf curl, is fairly widespread in all tobacco tracts in India. Generally the disease appears 3-5 weeks after planting and sometimes late in the nursery. The virus is transmitted by an insect vector, white fly Bemisia tabaci . It is also graft

Symptom Symptom Affected plants show leaves with molting or mosaic pattern of light green and dark-green areas. Primary symptoms appear on newly formed young leaves as vein clearing, greenish yellow motling. Infection on young plants results in stunted growth,

Brown Spot: Alternaria longipes, Alternaria tenuis, Alternaria alternata

Symptom Symptom Small, pale to brown, round or irregular spots measuring 0.5 - 3 mm in diameter and cracked centers appears on the affected leaves of the plant. Affected leaves become dry and fall off. The disease may cause cankers on the stem. The infection s

Initially greyish white spots (about 0.5-lcm in diameter) appear at the base of the lower leaves of the maturing plant. Under favourable conditions of low temperatures (16° -23° C) and high humidity these white patches spread to upper leaves, enlarge and cover

Symptom Black shank occurs sporadically in every type of tobacco and causes more damage, to tobacco grown under high rainfall or irrigated conditions in light soils of Karnataka, Andhra Pradesh and Gujarat. It is caused by soils inhabiting fungus Phytophthora

Symptom Symptom The disease causes serious damage to the seedlings in nurseries only and it occurs rarely in the fields. Initially, infection starts on lower leaves as pale-brown circular spots of 0.5 mm diameter with papery depressed centres outlined by sligh

Symptom Damping off is a serious problem in tobacco nurseries both in heavy clay soils and light sandy soils. It is caused by several soil inhabiting fungi predominant being Pythium aphanidermatum, pythium debaryanum , Phytophthora sp. and some times Rhizocton