Crabapple Fungicide programs

[TreeJunkie]

How many of you out there offer this service? I'm interested to hear others methods for treatment? ie...products, # of applications, timing.

I know this questions answers may vary depending on location and climate as well as what products are available.

 

[urbanohio]

I've had good luck with Cleary's 3336 WP applied with Dithane and a sticker three times in the spring. First time between budbreak and 1/3 size leaf development, next when leaf reaches about 2/3rds of it's size, and a third as the leaf reaches full size but before it turns it's summer color. This times out to about 14 day intervals. Banner can also be used, but I don't have much experience. For really high-end properties you can repeat your spring spray monthly through the summer. I have no studies to prove this helps any, but properties I've treated with this spray-intensive program do look great.
Don't forget the basics in a zeal to spray... Make sure the infected leaves are well cleaned up and the tree is as healthy and happy as possible. This goes a long way in helping the tree look good to your client. Resistant varieties are the real answer for scab.

 

[Brian]

For crabs I always used a systemic with lots of spreader sticker and applied as per Label. Banner was ok but Bayleton worked the best for me....but that was back in the 90's. I hear that there is some better materials out there now.

 

[Rookieclimber]

The compant i work for uses Comass at 6 oz per 100 gal with sticker and New Balance, seems to work out well

 

[TreeJunkie]

Talked with Helena chem the other day about chemical options and they recommended to use Spectro b/c it also contains a contact fung. Whereas the T-Methyl generic for Cleary is sytemic only. Anyone else use the Spectro product? Cost is quite a bit higher unfortunately....

Anyhow we used the Cleary this year and so far results seem to be good. We'll see as the summer progresses and make a determination from there.

 

[Paul_Burf]

3 treatments of Banner Maxx (6oz/100gl) mixed with Dithane 75DF (1.5lb/100gl) at 21 day intervals starting at bud break, will provide excellent results for control of Cedar-Apple rust on Crabapples.