ONE HUNDRED THOUSAND FACTS FOR THE PEOPLE. 3 6j 



vines so clean that he could scarcely find 

 a single beetle the following year. 



GRAPE CODLING.— Although the pre- 

 ceding insect has been so scarce, yet the 

 Grape has been worked upon in a some- 

 what similar manner, and even to a 

 greater extent, by the insect now under 

 consideration. 



The larva of this Grape-codling may 

 at once be distinguished from that of the 

 Grape curculio, by its having six scaly 

 legs near the head, eight fleshy legs in 

 the middle, and two at the extremity of 

 the body, and by spinning a fine web, by 

 which it lets itself drop whenever handled. 

 It is also larger, of a darker color, and 

 bears a very close resemblance to that of 

 the Strawberry leaf-roller, to be hereafter 

 figured and described. 



Its presence is soon indicated by a 

 reddish-brown color on that side of the 

 yet green grape which it enters. On 

 opening the grape, a winding channel is 

 seen in the pulp, and a minute white 

 worm with a dark head is seen at the 

 end of the channel. It continues to feed 

 upon the pulp of the fruit, and when it 

 reaches the seeds, eats out their interior. 

 As it matures it becomes darker, being 

 either of an olive-green or dark brown 

 color, with a honey-yellow head ; and if 

 one grape is not sufficient it fastens the 

 already ruined grape to an adjoining one 

 by means of silken threads, and proceeds 

 to burrow in it as it did in the first. 

 "When full grown it leaves the grape and 

 forms its cocoon on the leaves of the 

 vine. This operation is performed in a 

 manner essentially characteristic: the 

 worm cuts out a clean oval flap, leaving 

 it hinged on one side, and, rolling this 

 flap over, fastens it to the leaf, and thus 

 forms for itself a cozy little house which 

 it lines on the inside with silk. 



Remedies, — This insect threatens to 

 become a grievous pest unless checked 

 by some unforeseen means, as was the 

 case with the Grape curculio. Luckily, 

 there is at least one parasite which attacks 

 it, in the shape of a yellowish, footless 

 maggot, with a green tint and fourteen 

 .segments. We obtained such maggots 

 from two of the caterpillars, one having 

 crawled out of its host before, and the 

 other after he had spun up. Mr. Read 

 says, the first brood of caterpillars feed 

 on the leaves, appearing in May (in Ohio) 



or as soon as the leaves are grown. The 

 worms which appear in our grapes in 

 July are, therefore, the second brood, and 

 there is doubtless a third brood, for Mr. 

 Rathvon received them in October, and 

 we have taken the worm out of a grape 

 as late as the 2 2d of September. The 

 broods, in all probability, run into one 

 another, and the last passes the winter 

 within the cocoon, either in the larva or 

 pupa state. They should, therefore, be 

 searched for early in the season on the 

 leaves. The second brood of worms, or 

 those which infest grapes, can easily be 

 espied and destroyed in a healthy vine- 

 yard; but where a vineyard is affected 

 with what is designated as the " American 

 Grape-rot," the grapes attacked by the 

 Codling are not so easily distinguished, 

 as they bear a close resemblance to the 

 rotting ones. Care should be taken in 

 gathering the infested grapes, for the 

 worm being very active wriggles away 

 and easily escapes. 



GRAPE-VINE PLUME.— During the 

 latter part of May and beginning of 

 June, the leaves of the grape-vine may 

 often be seen drawn together by silken 

 threads, and in the retreat thus made will 

 be found] a small hairy caterpillar, which 

 feeds on the tender leaves of the vine. 

 This caterpillar grows to the length of 

 about half an inch; the color of the body 

 is very pale green and has four elevated 

 white spots and two still smaller dots on 

 every segment, from which spring stiff 

 white hairs in all directions. 



Remedies. — Whenever they become 

 numerous, the only remedy is hand-pick- 

 ing. 



TREE-CRICKET. — The general color 

 is a delicate greenish, semi-transparent 

 white, though some specimens have a 

 blackish shade. From the fact that it is 

 known to devour plant-lice, and likewise 

 the eggs of some moths, we were formerly 

 in doubt whether it should be consideced 

 friend or foe, but the experience dur- 

 ing 1875 year settled the matter definitely, 

 for it proved very destructive to the 

 vine. The female deposits her eggs in 

 grape canes, raspberry and blackberry 

 canes, in the twigs of the peach, white 

 willow, and a variety of other trees. In 

 depositing, she makes a straight, longi- 

 tudinal, contiguous row of punctures, 

 each puncture about the size of that 



