[Apple-Crop] Scaffolds 5/1

A new issue of Scaffolds for the week of 5/1 has been posted and is available at: http://www.scaffolds.entomology.cornell.edu/2017/SCAFFOLDS-5-1-17.pdf A version compatible for mobile devices is available at: http://www.scaffolds.entomology.cornell.edu/2017/SCAFFOLDSMD-5-1-17.pdf This week's

Re: [Apple-Crop] Cueva/Double Nickel

Hi Vincent, Our organic trials were comparing Badge alt Microthiol and Cueva + Double Nickel. They were all air blast at 100 gal/A. We've done a lot of injury trials and injury is seems to be increased with low volume or concentrate applications. Our injury results seem to follow the acute

Re: [Apple-Crop] Cueva/Double Nickel

Hi Kerik, It would certainly be interesting to understand why results differ so greatly. It’s unfortunate that companies insist on high volume spraying. Aside from the russeting issue, there are many good reasons to reduce spray volume (in relation to tree size). It’s also unfortunate most

Re: [Apple-Crop] When to Head or Tie Down Tall Tall Spindle to promote lateral growth?

Mosbah, When is the best time to apply promalin or maxcel-the label instructions for apples appear to be for either prior to bud break or for nursery sized trees? On Mon, May 1, 2017 at 10:40 AM, Kushad, Mosbah M wrote: > My suggestion is not to head the leader unless it

Re: [Apple-Crop] When to Head or Tie Down Tall Tall Spindle to promote lateral growth?

My suggestion is not to head the leader unless it has reached its maximum height, then head it back to a weak lateral in winter. As you mentioned, tie-down the leader in early spring, but don’t forget to bring it back up after bud break and before it stiffens in mid-summer (early July in

[Apple-Crop] Cueva/Double Nickel

A couple years ago I recall discussion regarding the use of Cueva/Double Nickel combination as an alternative and/or rotation with strep for fireblight management. Is anyone aware of further research regarding this combination esp as to regards to crop safety and efficacy ? Mo Tougas -- Maurice

Re: [Apple-Crop] Cueva/Double Nickel

I'm certainly not an expert! The cueva label says "May cause russeting of susceptible apple varieties. Do not exceed the 1.0 gallon of product/ 100 gallons water use rate." When Kerik started me on this program, he said "we never get fruit finish injury. However, depending on your spray

[Apple-Crop] When to Head or Tie Down Tall Tall Spindle to promote lateral growth?

I have second year old tall spindles. Some of them are near the maximum height. Most of them do not have enough lateral growth. When should I head the tree or Shepard hook the top of the tree down with twine? I am next to a commercial tree nursery. They Shepard hook tie down in Spring to promote

Re: [Apple-Crop] Cueva/Double Nickel

I hope you meant a Low volume of water. High volume = slow drying = russeting. This is very easy to demonstrate. We do it as a "control" in plots. We always have copper induced russeting at 500 L/ha and none at 225 L/ha. Vincent Philion, agr., M.Sc. Le 1 mai 2017 à 08:05, Two Onion Farm

Re: [Apple-Crop] Cueva/Double Nickel

Hi Vincent, We've found that concentration is potentially more damaging with copper than higher volumes as the both 50gal and 100gal get the same amount of copper. It's like taking powdered aspirin with half the recommended amount of water. Also, many labels in the US actually require that

Re: [Apple-Crop] Cueva/Double Nickel

Hi Kerik, I don’t know how much experience you actually have with airblast sprayer trials varying volume, but this is something we do routinely. Evidence of copper injury with high volume sprays dates back (at least) to 1972. Look it up. Classic experiments demonstrate the same amount of

Re: [Apple-Crop] Cueva/Double Nickel

On the topic of copper: you don't need to spend extra for Cueva. Use of standard oxychloride at a low dose is just as good in most instances. Vincent Philion, agr., M.Sc. Le 1 mai 2017 à 08:05, Two Onion Farm > a écrit : Kerik Cox at

Re: [Apple-Crop] Cueva/Double Nickel

Hi Vincent, I think you missed the first line of the last message where I say that this work was done with an airblast sprayer at 100 gal/A in my organic orchard. One must have a dedicated sprayer for organic. I can't use the handgun that block. Don't know what the fuss about handguns is

Re: [Apple-Crop] Cueva/Double Nickel

If we “must" continue this: > Our injury results seem to follow the acute toxicity/exposure phenomenon, > whereby injury is higher when the concentration is higher not more dilute. > This is not unlike when one is exposed to a toxin in water, air, or direct > contact. In orchard trials,