Re: [apple-crop] Kasugamycin for fire blight

2015-03-21 Thread maurice tougas
Would oxytetracycline be an effective economical alternative in those "borderline" instances? Mo Tougas On Fri, Mar 20, 2015 at 10:18 PM, Smith, Timothy J wrote: > HI Brian, > > > > Yes, that would work well. Kasumin has worked well in Michigan. > > > > Tim > > > > *From:* apple-crop-boun...

Re: [apple-crop] Kasugamycin for fire blight

2015-03-21 Thread David A. Rosenberger
While Kasugamycin works about as well as streptomycin, oxytetracycline is generally a bit less effective and has the disadvantage of preventing bacterial multiplication without killing off all of the bacteria contacted by the spray. Of the three antibiotics, it is my understanding that only str

Re: [apple-crop] Kasugamycin for fire blight

2015-03-21 Thread Brian Heatherington
No resistance from bloom sprays is good news. I have had no control problems with copper prior to green tip, strep timed by Maryblyt, Apogee to minimize pruning/harden shoots to possible shoot blight, and control of aphids/leafhoppers at petal fall/1st cover. A few years