Hello Kevin, I normally operate with a mean drop size of about 80-90 microns. The thing about these nozzles is that they give drops of 500 microns, that are supposed to break up into small drops (but I don't know what size) once they contact the plant foliage. Clearly, with such large drops, drift should not be an issue, but if the drops don't break up as promised, then problems of areas receiving too much and too little active ingredient will certainly arise. I think Maurice's suggestion of the water sensitive cards will be very useful to check how the nozzles actually perform, but I'd rather not buy the nozzles to later find out that the water sensitive card says that they don't do what they claim. I might have to find out myself, and at least then I can let you know what I think. Con Traas
-----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] Behalf Of Kevin Sanders Sent: 20 February 2007 22:36 To: Apple-Crop Subject: Re: Apple-Crop: Spray Nozzles My own thoughts are that you should be careful ..If you have some thoughts on trying this you should remember that the best coverage is applied by spraying as constant a drop size as you can manage in the 100 micro range .The larger drops lead you to deposits of chemical in small area's and not complete coverage of the surface . Kevin Sanders
