So, when I was at Michael's orchard coarse last June, he thought that possibly the runoff from spraying Grandevo could affect the life cycle of this miserable pest because they pupate in the ground after they destroy the fruit. Then they emerge from the ground to eat more in late August - September. I'm doing a heavy ground spray tomorrow (IMO, compost tea) before a good rain and I'by Mark Forstrom - Bug by Bug
Thanks so much for your inputs, Alan and Mike. Just the kind of info I need as I'm by myself on this journey into trying to grow organic tree fruit. This site has helped us at The Victory Garden orchard so much along with Michaels books and videos. Mike, your spray strategy sounds great, and I will do that next year for sure. I also like the idea of trying a garlic, comfrey tea added toby Mark Forstrom - Bug by Bug
I too have had the same experience with using Grandevo for the first time this year Brittany. I used it by itself one day after a holistic spray. I know Michael mixed it with Surround, but it sounded like Don didn't last year and had great results. Applied it at petal fall and I think maybe that's too late. Major damage to apples, pears and peaches. Here in Ct. they seem to come out inby Mark Forstrom - Bug by Bug