. The American fruit culturist, containing directions for the propagation and culture of all fruits adapted to the United States. Fruit-culture. 176 DESTRUCTIVE INSECTS. children in this work by prizes, or by paying a certain amount for the collection of unhatched egg-rings at any time between August ist and the following April; this is especially appli- cable in villages where shade trees are infested. Where orchards are thoroughly sprayed with poisons for other pests, the tent-caterpillars are usually destroyed at the same time. The caterpillars of the forest species quickly drop from the tr
. The American fruit culturist, containing directions for the propagation and culture of all fruits adapted to the United States. Fruit-culture. 176 DESTRUCTIVE INSECTS. children in this work by prizes, or by paying a certain amount for the collection of unhatched egg-rings at any time between August ist and the following April; this is especially appli- cable in villages where shade trees are infested. Where orchards are thoroughly sprayed with poisons for other pests, the tent-caterpillars are usually destroyed at the same time. The caterpillars of the forest species quickly drop from the tree when it is suddenly jarred, thus offering a very prac- ticable method of collecting and killing them in orchards, and especially on village shade trees. When the apple-tree tent-. FlG. 24a Fig. 241. caterpillars and their nests or " signboards " are small, a whole family can be quickly wiped out and destroyed with an old mitten or rag in one's hand. These nests should be looked upon as signboards of shiftlessness, for not many injurious insects can be so easily controlled. Yellow-necked Apple-tree Caterpillar {Datana ministra).—The larva of this moth, which usually appears in July or Aug:ust, when full grown, is from an inch and a half to two inches long. A family of them is so voracious that if undisturbed they will soon defoliate a small tree. Though they spin no web, they have a peculiar habit of collecting together in masses in the noticeable position shown in Fig. 240. At such times they may easily be destroyed by burning, or by brush- ing them off on to the ground and killing them. The perfect insect is shown in Fig. 241. The Apple Maggot {Trypeta pomonella) Fig. 242, lives in the pulp of the apple and tunnels it in winding channels, ruin-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectfruitculture, bookyea
