Economic entomology for the farmer Economic entomology for the economicentomolo00smit_0 Year: 1896 458 A AT ECONOMIC ENTOMOLOGY. in a very short time, A moderate-sized tree can be sprayed with a group of Vermorel nozzles in from one to three minutes. A good pump will easily supply two lines of hose, and most of those now made for orchard spraying are supplied with two dis- charge openings. A three-quarter hose is all that is necessary, even when a compound nozzle is used. The Vermorel nozzle is supplied with a '' degorger,'' or apparatus for cleaning out the spray opening in case it
Economic entomology for the farmer Economic entomology for the economicentomolo00smit_0 Year: 1896 458 A AT ECONOMIC ENTOMOLOGY. in a very short time, A moderate-sized tree can be sprayed with a group of Vermorel nozzles in from one to three minutes. A good pump will easily supply two lines of hose, and most of those now made for orchard spraying are supplied with two dis- charge openings. A three-quarter hose is all that is necessary, even when a compound nozzle is used. The Vermorel nozzle is supplied with a '' degorger,'' or apparatus for cleaning out the spray opening in case it becomes clogged ; but it is not easily clogged, and is, in fact, one of the most satisfactory from that stand-point. With a screen at the bottom of the suction pipe the meshes of which are not larger in diameter than the dis- charge opening in the nozzle, clogging should be practically im- possible. Fig. 475. The Nixon nozzle.—i, complete ; 2, 3, the two parts, separated. The Nixon nozzle is a satisfactory bit of apparatus, working on an entirely different principle from the cyclone. Here we have a barrel-shaped cylinder of varying length, at the base of which the water enters through a small opening in a solid jet, di- rected against a wire screen at the tip of the cylinder. With a good force behind it, a fine spray is sent from such a nozzle from
Size: 1369px × 1461px
Photo credit: © Bookworm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
