Can you use Malathion to spray Plum trees, if so how often?
Yes, you can use Malathion on Plum Trees. You should apply at a rate of 2 tablespoons per gallon of water. Typically Malathion will last for 30 days before it needs to be re-applied. You should not apply this product within 2 weeks of harvesting.
Answer last updated on: 03/26/2011