The Journal of the Department of Agriculture, Victoria . lacewings (after froggatt;. 1. Full gn;wn 2. Larva. IJlagnified). 486 Journal of Agriculture, Victoria lo Aug., 1912. They and (lo a great amount of good in kee|)ing insect pests in therefore be protected. As mealy bugs are very destructive to our \ahiable wattles, a sharplook-out should be kept for them. and. if seen, it would be ad^?isable tospray with weak kerosene emulsion, benzole emulsion, or red 3. MEALY BUGS UN JkLiNK AND STEMS OF NATIVE CHERRY TREE. Specimens of the insects mentioned in this short article can


The Journal of the Department of Agriculture, Victoria . lacewings (after froggatt;. 1. Full gn;wn 2. Larva. IJlagnified). 486 Journal of Agriculture, Victoria lo Aug., 1912. They and (lo a great amount of good in kee|)ing insect pests in therefore be protected. As mealy bugs are very destructive to our \ahiable wattles, a sharplook-out should be kept for them. and. if seen, it would be ad^?isable tospray with weak kerosene emulsion, benzole emulsion, or red 3. MEALY BUGS UN JkLiNK AND STEMS OF NATIVE CHERRY TREE. Specimens of the insects mentioned in this short article can be seen atthe Entomological and Ornithological Museum belonging to the AgriculturalDepartment. ARSENATE OF LEAD. For the purpose of comparison and guidance to all interested in thisspray, an examination has been made of the different brands obtainableOR the market at the present time. This list, as can be seen, is of afairly comprehensive character, as it contains not only the ordinarv moistsamples, but also some of the dry powder, which would appear to beiriaking some headway—there being three different brands of that ordinary samples are evidently made, some by using Acetate of Leadand others by using Nitrate of Lead, as the lead base. A pure dry sample of Arsenate of Lead made by the use of theseingredients, by calculation, would give the following percentages :— Arsenic Acid. Oxide of Lead. Arsenate of Soda + Acetate of Lead .. 30-07 per cent. .. 69-9


Size: 1375px × 1817px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, booksubjectagricul, bookyear1902