Question: asking about application  of vitamin and control of caterpillar 
Answer: recommended him to apply  mahafal at 2ml/lit spray twice at 15 days interval and for control caterpillar  spray malathion 50 ec @ 2ml/lit of water  twice at 5 days interval  and for root rot of french been apply contaf @ 2ml/lit of water spray twice at 5 days interval