TITLE:
Management of Wilt Complex of Eggplant (Solanum melongena L.) Caused by Fusarium oxysporum, Ralstonia solanacearum and Meloidogyne spp.
AUTHORS:
Nahid Akter, Mohammad Rafiqul Islam, Mohammad Belal Hossain, Mohammad Nazrul Islam, Shukti Rani Chowdhury, Sanzida Hoque, Rakibul Hasan Nitol, Rubina Tasnin
KEYWORDS:
Eggplant, Integrated Management, in Vitro Evaluation, Bioagent, Wilt Complex Disease
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.12 No.7,
July
30,
2021
ABSTRACT: Wilt complex disease of eggplant is a severe problem
in Bangladesh as well as in the world. The pathogenic variability and their
survival nature make the disease complex. The pathogen includes a fungus (Fusarium oxysporum), a bacterium (Ralstonia solanacearum) and a nematode (Meloidogyne spp.)
that attack the plant individually or combinedly. The present investigation
aimed to evaluate the integrated effects of different chemicals, poultry manure
and Trichoderma
harzianum to manage the disease.
Carbendazim (Autostin 50WP), Streptomycin sulphate 9% and Tetracycline
hydrochloride 1% (Krosin 10SP) and Carbofuran (Furadan 3G) were used as a
fungicide, bactericide and nematicide, respectively which were integrated with
poultry manure and Trichoderma harzianum resulting
in sixteen treatments. The treatment
efficacy varied significantly in comparison to control in respect of wilt
incidence, yield and yield contributing characters. No wilt incidence was
observed where Trichoderma harzianum was
applied individually or in combination with Furadan 3G, Krosin 10SP, Autostin
50WP and poultry manure. The highest yield increase (300%) over control was
noted in the treatment where Krosin 10SP, Furadan 3G, Trichoderma harzianum and Poultry manure were applied combinedly.
The same treatment showed the best performance over control by 32%, 29%, 60%,
53% in case of the number of branches, number of leaves, number of fruits and
fruit length, respectively. This treatment (Krosin 10SP + Furadan 3G + Trichoderma sp. + Poultry manure) also
provided the highest Benefit Cost Ration (5.68).