Dear friend, I have no idea about odisha soil or prevailing climate there .There are lot of varieties and hybrids in Brinjal in India .SO better refer your case to nearest technical institute in Odisha..I understand there is a big progress in vegetable cultivation with lot of technical expertise .However I wish to give you this high light on bacterial wilt disease as below
Bacterial wilt has become quite common in plants belonging to solanaceous family ( Night shade ) ..Recently the wilt disease damage all solanaceuos group of plants more particularly Egg plants and Tomato
The wild variety has developed resistance to bacterial wilt as the root exudates that contain phenolic compounds deter the development and spread of bacteria ( here in this case we refer it as Ralstonia solanacearum bacteria , class of bacteria belonging to bacillus type )
where as in high yielding hybrid brinjal , the genetic make up originally built in plant cells by nature over past thousands of years were broken rendering newly developed bybrid plants weak and susceptible to the attack of bacteria
Due to escalated cost of cultivation now a days , cultivation of wild / Native brinjal has made farming uneconomical due to low yield ..
So no other go than doing hybrid brinjal that invariably being attacked and infested when condition favorable for bacteria prevails in the cultivation field
so best advise is that you pick up a best and high yielding hybrid brinjal seeds in the market and do BIO PRIMING WITH TRICHODERMA VIRIDE / PSEUDOMONAS FLORSCENS BIO PESTICIDE before sowing seeds in protray
The fungus or bacteria will penetrate the seed coat and proliferate sufficiently enough to protect the seedlings / plant from bacterial or pathogenic fungi attack.
Also apply more organic matter in the form of well decomposed farm yard manure . 15 dys before field application , mix required quantity of Trichoderma viride/ psedomonas florscens , azospirillum , phosphobacteria /bacillus subtilis culture with FYM and keep it moist with wet gunny bags with daily stirring and turning the culture so as to enable fast growth of microbes
This culture can be applied over the planting bed a day before planting .This increase microbial population counts in soil that compete with pathogenic bacteria and prevent its damage
If possible apply Lime to the field .The lime too suppress the pathogenic bacteria and prevent infection
The bacteria develop fast with virulence in the temperature range of 29-37 degree celsius with excessive moisture ..So better cultivate brinjal in raised bed to ensure sufficient drainage during heavy rainfall ..
The bacteria responsible for wilt disease is mainly soil borne and spread by seeds, irrigation water and debris
so control measures are as follows
1.Seed treatment - chemical seed treatment is temperary - bio pesticide treatment by bio priming is a permanent cure or atleast for most part of plant life cycle that produce great yield before damage
2.More organic matter added to soil - FYM or sunhemp ( crotalaria spp ) as green manure can be grown and incorporated in situ before brinjal planting .This prevent soil borne bacterial pathogen
3.Periodical spray of pseudomonas florscens at 7-10 days interval for atleast 6 times
4.In case of unusual weather expected in short future , do protective spray with copper based fungicide / or when you notice symptom of bacterial wilt during heavy rain and flood
5.If you still feel insecure about plant health , better go for grafted brinjal plant and grow it for 3 years continuously - first year main crop , second and third year ratoon crop of brinjal ...without ploughing soil for 3 consecutive years