I do the adjusting by changing my ground speed as I go to closer spacings. 2MPH for 24' rows, 2.5 MPH for 18' rows and 3 MPH for 15' rows. I also shut off top nozzles for shorter trees. I'd like to come see that Darwin in action.
On Sat, Apr 3, 2010 at 6:56 PM, Mo Tougas <[email protected]> wrote: > We are using a sprayer controller, and so the pressure varies block to > block depending upon row spacing, speed, tree height, etc. That is of > course where the challenge lies, finding nozzles that will deliver over a > range of pressures to meet the mix of training systems we have. So the range > is 75 psi to 200 psi. To my dismay, we spray at 50 or 100 gpa, depending on > what material we are spraying. We'd like to be doing a better job of using > TRV, but when we add the complications of guessing the intents of some of > the label rates, together with our mishmash of plantings, we're settling in > at rate per acre, regardless of the "acre". Someday we will have the > technology to "read" the tree's canopy in terms of density, and we'll do a > better job. > > Mo Tougas > On Apr 3, 2010, at 10:43 AM, Jill Kelly wrote: > > > I have about 1/3 24' rows. 1/3 18' rows and the last 1/3 are 15' rows. > What pressure and GPA do you operate at Mo? > > > > Thanks, Art > > ----- Original Message ----- From: "Mo Tougas" <[email protected]> > > To: "Apple-Crop" <[email protected]> > > Sent: Saturday, April 03, 2010 6:37 AM > > Subject: Re: Apple-Crop: AI nozzles for airblast sprayers > > > > > > Hi Art > > > > We've been using the Albuz and spraying systems AI nozzles for several > seasons now. We'd been using them for herbicides and for spraying > strawberries for years and were quite satisfied. > > Two years ago we started using them in airblast sprayers. We've found > that they are a bit limited there. The droplets are heavy, and we feel that > 16' row spacing is about as far as we can go and get uniform overage. Past > that, and pattern has not been satisfactory. I'd suggest caution. Use a > couple in the top positions on your sprayer, and be sure to use water > sensitive paper in your trees to be sure you are happy. > > > > Mo Tougas > > Tougas Family Farm,LLC > > Northborough, MA > > > > On Apr 2, 2010, at 8:14 PM, Arthur Kelly wrote: > > > >> Hi all, > >> I am considering switching over to air induction nozzles for my > orchard sprayer. What is the experience so far in terms of pressure, > gallons per acre, the effect of row spacing and tree size etc? Does anyone > have any suggestions? > >> > >> Art Kelly > >> Kelly Orchards > >> Acton, Me > > > > > > > > > -------------------------------------------------------------------------- > > > > The 'Apple-Crop' LISTSERV is sponsored by the Virtual Orchard > > <http://www.virtualorchard.net> and managed by Win Cowgill and Jon > > Clements <[email protected]>. > > > > Apple-Crop is not moderated. Therefore, the statements do not represent > > "official" opinions and the Virtual Orchard takes no responsibility for > > the content. > > > > > > > > > > > > > > > > > > > > > -------------------------------------------------------------------------- > > > > The 'Apple-Crop' LISTSERV is sponsored by the Virtual Orchard < > http://www.virtualorchard.net> and managed by Win Cowgill and Jon Clements > <[email protected]>. > > > > Apple-Crop is not moderated. Therefore, the statements do not represent > "official" opinions and the Virtual Orchard takes no responsibility for the > content. > > > > > > > > > > > > > > > > -------------------------------------------------------------------------- > > The 'Apple-Crop' LISTSERV is sponsored by the Virtual Orchard > <http://www.virtualorchard.net> and managed by Win Cowgill and Jon > Clements <[email protected]>. > > Apple-Crop is not moderated. Therefore, the statements do not represent > "official" opinions and the Virtual Orchard takes no responsibility for > the content. > > > > > >
