. Cyclopedia of farm crops. Farm produce; Agriculture. Me cha nical methods. is often acticable to hand-pick or out insect ;sts. This is largely prac- ticed in coun- tries where cheap labor is available. No cheaper and ef- fective method has yet been found for com- bating borers and many pests (a s cutworms and white grubs) working in gardens and on other small areas. Children have done very effective work in collecting eggs of tent-caterpillars and tussock- moths on shade trees. A box-like covering of wire- screen or mosquito-netting is often placed over hills of squashes, melons and cucumber
. Cyclopedia of farm crops. Farm produce; Agriculture. Me cha nical methods. is often acticable to hand-pick or out insect ;sts. This is largely prac- ticed in coun- tries where cheap labor is available. No cheaper and ef- fective method has yet been found for com- bating borers and many pests (a s cutworms and white grubs) working in gardens and on other small areas. Children have done very effective work in collecting eggs of tent-caterpillars and tussock- moths on shade trees. A box-like covering of wire- screen or mosquito-netting is often placed over hills of squashes, melons and cucumbers to protect them from the ravages of the striped beetle and stink-bug. Seed-beds of cabbages, radish beds and various choice or rare plants can be thus protected from insects at slight expense. Bushels of young grasshoppers and swarms of small leaf-hoppers are often collected on the western prairies by drawing Icfrge iron pans smeared with tar or containing ker- osene, and called " ; (Fig. 59.) Thous- ands of grape leaf-hoppers can be collected on sticky shields held near while the vines are jarred. Fig. 61. Canker-worm moths stopped by sticky band in their progress up a In'" t „ jyrf Fig 62 Ridge formed by Marcy miplement for protection against chinch-bugs. Post-holes are dug beside tlie ridge about fifty feet apart. This barrier is smooth and compact, and very little affected by the rain. The line of coal-tar along the top has 1>een successful in all weather conditions. (Kansas Experiment Station Report, 1896-97.) (Fig. 60.) Sticky bands have long been used effec- tively to prevent the female moths of canker-worms ascending trees to lay their eggs. (Fig. 61.) For a quarter of a century before the advent of spraying, the principal means em- ployed to reduce the numbers of the codling-moth were various kinds of cloth or hay-rope bands around the trunks of the trees to form more attrac- tive places for the caterpillars to trans
Size: 2486px × 1006px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectagriculture, bookyear
