Yogesh Ji, we [ Team of ...

Yogesh Ji, we [ Team of scientists with Dr.Kaiser Jamil] from Indian Institute of Chemical technology-CSIR-Labs] developed a technology which is very safe to the environment in controlling weeds and its been applied in many parts of India,the state of A.P,U.P, other parts in India,and submerged weeds like Hydrilla are also controlled by using pathogenic fungi and weevils.As you said it is a bit difficult to control in long river beds,but it is not impossible,the first thing is to use ponds for the rearing or multiplication of weevils/insects from early summer and keep the population ready-then alternatively use two bio-control agents which is more effective,the second thing is to control the weed infestation use the same system at river system by blocking the weed mats against the flow and treat them with bio-control agents,well we need to study the favorable conditions before the inoculation trials..it woks.Though the biological control is a bit slow,once it clicks the agents keep checking the weed growth.Now we are retired from CSIR,the technology we developed remains...you are most well come foe any further information.