questions: asking about damping off of cabbage seedling and bacterial rot of tomato seedling 
 answers: recommend him to apply blitox 50 @ 1gm per liter water and spray in the cabbage seedling . for tomato bacterial rot recommend him to apply  cristocyclin @ 1 gm per 5 liter water and spray in the lower portion of the seedlings. spray two times in a 7 days interval