Site pages
Current course
Participants
General
Topic 1
Topic 2
Topic 3
Topic 4
Topic 5
Topic 6
Topic 7
Topic 8
Topic 9
Topic 10
Topic 11
Topic 12
Topic 13
Topic 14
Topic 15
Topic 16
Topic 17
Topic 18
Topic 19
Topic 20
Topic 21
Topic 22
Topic 23
Topic 24
Topic 25
Topic 26
Topic 27
Topic 28
Topic 29
Topic 30
Topic 31
Topic 32
Topic 33
Topic 34
Topic 35
Topic 36
Topic 37
Topic 38
Black banded/Black stem
Rhinocladium corticolumn Massee – [Syn. Pexiotruchum corticolum (Massee) Subram]. The occurrence of disease in mango was recorded at Pune. Now it occurs in A.P., Goa, Gujrat, Karnataka, maharastra, T.N, and W.B.
Black, velvety or felt-like growth is seen on the midribs and bark of twigs and branches of mango. The disease is very low on main branches. The fungus develops on the colonies of scale insects and therefore it is not responsible for the death of branches but the scale insects are the primary causes for the damage of twigs. It presence a characteristic and conspicuous black banded appearance. The mycelia growth and clusters of conidiophores present a velvety appearance during rainy seasons which drop off in summer months leaving light black bands on the affected portions. Badly infected twigs and branches are to be cut and destroy. The surface of twigs or branches may be scraped off and brushed with a solution of COC with insecticide to get rid of attack of both. Black banded / black stem
![]() |
Last modified: Monday, 16 January 2012, 5:52 AM