Category: Apple IPM
-
VT Apple IPM: Big apple scab event coming, recording scouting data in Farmable
Here’s a quick note with rain expected in the next few days. -TB With the dry weather that we’ve been experiencing the last week or so, we have had an extended time without apple scab infection periods. However, there has been significant development of ascospore maturity so the next substantial wetting event, which should occur…
-
VT Apple IPM: HIG – Tight Cluster in Vermont orchards
As we wrap up what could be a substantially damaging week for Vermont Apple Growers, I am heartened to have heard very little about damage from Monday night’s frost event. (Please report any damage in your orchard here). That doesn’t mean that there isn’t damage out there— we have heard reports of substantial damage just…
-
Cornell pink stage webinar this afternoon
Passing on this announcement for a webinar to be held today at 1:00 PM. While we are a bit further behind in Vermont than in many areas of New York, this material will be relevant to all growers in our region. I’ll be looking at buds in the next couple of days to assess potential…
-
Follow up: Anticipating frost and preventative measures to protect from it
I’ve received more than one inquiry about what one can do now to help alleviate potential frost damage hat may occur in the next week or two. The specific question has come up about the application of kelp extract pre-bloom to provide some level of frost protection. I must confess that I am quite skeptical…
-
More information on use of Promalin to manage early-season frost damage on blossoms
Passing this information on from Valent representative Jim Wargo. Keep in mind, the successful use of PGRs to offset frost damage is dependent on many factors, but ultimately hinges on sending a hormonal signal to receptive ovaries at the base of flower blossoms. Therefore application would be made later when trees are in early bloom.…
-
Vermont Apple IPM: Green Tip
Warm weather has substantially advanced bud stages on apples this week. In most of the production regions of the state, orchards are rapidly advancing through green tip and approaching or are at half-inch green. If you have any more than one “mouse ear” leaf showing from the developing buds, you should put the copper back…
-
Start of the season: Early season copper on VT apples
With the warm weather coming in, we expect most Vermont orchards to be at green tip in the next few days if they have not gotten there yet. This is an ideal time to think about beginning your pest management season by applying a whole orchard copper spray. Copper should be applied to apples before…
-
UVM Fruit Program/VTFGA IPM Monitoring Program UPDATE and SIGN UP
This is a joint announcement from the UVM Fruit Program and the Vermont Tree Fruit Growers Association. We typically consider April 1 the ‘start’ of the apple growing season in Vermont, so here we are- trees still dormant, weather cold and damp, but green tip and the start of the 2026 crop right around the…
-
Time to be thinking about ReTain in Vermont orchards
It is time to be thinking about applying ReTain to apples in Vermont orchards. This plant growth regulator slow ethylene production, thereby delaying ripening, reducing fruit drop, and allowing the grower (or customer) to harvest firmware, fresher fruit. Ione important consideration this year is that ReTain does not work as well on water stressed trees,…
-
Clarification on legality of acetamiprid (Assail) use in apple orchards
I am passing this guidance on to apple growers regarding the legality of using acetamiprid and other insecticides in orchards when blooming weeds are present. As we are in apple maggot management season now, it is important to use materials effectively and safely, and many of us are using Assail to manage that pest. A…