Insects injurious to fruits . of the female, muchenlarged). This gnat is found in almost every cranberry- 374 INSECTS INJURIOUS TO THE CRANBERRY. Fig. 386. bog. There are not usually more than two of these larvae onany one shoot, and often there is only one. The mischief doneconsists mainly in the killing of the extreme tip of the vine,which prevents the formation of a fruit-bud for the next years growth, unless, asis sometimes the case, the vine by anextra effort puts them out at the side. Remedies.—There is a little Chalcisfly parasitic on this insect, which destroysit in large numbers. The
Insects injurious to fruits . of the female, muchenlarged). This gnat is found in almost every cranberry- 374 INSECTS INJURIOUS TO THE CRANBERRY. Fig. 386. bog. There are not usually more than two of these larvae onany one shoot, and often there is only one. The mischief doneconsists mainly in the killing of the extreme tip of the vine,which prevents the formation of a fruit-bud for the next years growth, unless, asis sometimes the case, the vine by anextra effort puts them out at the side. Remedies.—There is a little Chalcisfly parasitic on this insect, which destroysit in large numbers. The measures rec-ommended under No. 227 will also beapplicable here. No. 235.—The Cranberry Aphis. There is a large, red plant-louse whichsometimes occurs on cranberry-vines and punctures the leavesand tender stems, to their manifest injury. This aphis isdestroyed by the larva of a small lady-bird, a species ofScymnus, which larva is oval in form, and covered with awhite fuzz on its back. Flooding will destroy this No. 236.—The Cranberry Spittle Insect. CClastoptera proteus Fitch. This is a small, soft insect, with legs, but without wings,which is found in the early part of June in little masses offroth upon growing shoots of the cranberry-vine. The frothis the sap of the plant sucked in and then exuded by theyoung larva, probably for concealment. The insect belongsto the order Homoptera, having no jaws, but a beak, throughwhich it sucks the sap of the plant. The perfect insect jumps with the agility of a flea, and isfound hopping about among the vines. It seldom occurs insufficient numbers to inflict material injury. It is found alsoon the blueberry. ATTACKING THE FRUIT. 375 ATTACKING THE 237.—The Cranberry Fruit-worm. This is the caterpillar of a small moth related to the leaf-rollers, and is shown in Fig. 387. It is of a yel-lowish-green color, and appears early in August,when it injures the fruit, entering berry after berry,eating the inside of eac
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