Efficacy of different antibiotics and anti-bacterial compounds against bacterial wilt disease of tomato in West Bengal.

摘要

Pseudomonas solanacearum (Ralstonia solanacearum), a soilborne bacterial pathogen causes extensive crop damage in West Bengal. Bacterial wilt disease is an important diseases of tomato and a major constraint in production. Eight field trials conducted during 2000-03, root dipping of tomato seedlings for 6 h in a solution of 200 ppm streptomycin, chloramphenicol, oxytetracycline hydrochloride, norfloxacin, amoxicillin + cloxacillin, chloroquine phosphate and 2000 ppm dichlorophen before planting, reduced the incidence of bacterial wilt to a great extent. Seedling dip in 100 ppm solution was not effective. Soil drenching with 2000 ppm solution of dichlorophen at 20-day intervals also gave a good control of the disease.