. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 45 loaf biM'omos thii'kly spotted with thoin. Their feedino- causes a thiekeuing of the leaf at that spot, coinnionly caUed a blister or ^all. This blister is at tirst of a reddish color, l)iit it gradually turns brown, and finally black. In early fall, when the leaves ripen, the mites leave their galls and take refuge in the buds for the winter. INSECTS INFESTING FRUITS. Although few of the insects infesting fruit are liable to be trans- ported upon nursery stock, several of them are such destructive pest« as to
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 45 loaf biM'omos thii'kly spotted with thoin. Their feedino- causes a thiekeuing of the leaf at that spot, coinnionly caUed a blister or ^all. This blister is at tirst of a reddish color, l)iit it gradually turns brown, and finally black. In early fall, when the leaves ripen, the mites leave their galls and take refuge in the buds for the winter. INSECTS INFESTING FRUITS. Although few of the insects infesting fruit are liable to be trans- ported upon nursery stock, several of them are such destructive pest« as to merit the attention of all interested in horticulture. ****** * The codling moth {Carpocapm 2)»moneUa Linn.) passes the winter as a caterpillar in a cocoon in crevices or under loose pieces of the bark. However, they are not apt to occur on nursery trees. The cocoon is made of whitish silk and partially covered with bits of bark so that it is not easily seen. In early spring they pupate, and the moths issue to la}' their eggs on young apples. The larva bores into the apple, usually from the blossom end, mines to the core, and then, when about full-fed, bores to the surface. It leaves the apple to pupate on the trunk or larger branches of the tree. Some issue in late June or July and again lay eggs on the apple, making a second brood. In the Northeastern States there is but one brood a year. The codling moth also attacks pears and quini-es. The apple maggot { jxtmotiella Walsh, tig. 4^) is a two- winged fly that appears in June and lays its eggs just beneath the skin of apples. The white maggots, upon hatching, burrow throughout the apple in various directions. When full-fed the maggot drops to the ground, under which it pupates and emerges as a tiy the next spring. The cherry fruit-tly {Rh(ih'tix. clngalata Loew, tig. 43) infests cherr}^ in much the same manner as the apple maggot infests apples, and has a similar life history. The plum curculio {('(niotrachchix n
Size: 1647px × 1518px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectentomology, booksubjectinsects, booky
