Frank from Cameron Park, Ca writes
Right now I have black cherry aphids on one of my cherry trees and I would like to use merit 75 in a collar spray. In what concentration should I apply? I've also heard it may work on fruit flies I've been getting the last few years. How do I apply for fruit flies and what's the minimum interval from harvest?
Merit 75 WP is not labeled for use on cherry trees or other edible plants. ImidaPro 4SC is labeled for use for aphids on sweet and tart cherries. The best way to prevent fruit flies is to pick ripe fruit and pick up fallen fruits as soon as possible. You also can use Yellow Sticky Traps around areas where you frequently get high numbers of flying insects.
Answer last updated on: 04/23/2018