. Manual of fruit insects. Fig. 287. — Adult of the rasp-berry cane-maggot. Enlarged. On leaving the egg shellthe young maggot crawlsdown the shoot for a shortdistance and then bur-rows its way into the tunneling abouthalf the length of theshoot the maggot worksits way nearly out tothe bark and deftly con-tinues its tunnel aroundthe shoot, thus girdlingit from the inside (). The part of theshoot above the girdlesoon wilts, shrinks in sizeand droops over. Soonafter the tip droops, a The flies appear in the latterpart of April, when the newraspberry shoots are a fewinches in he
. Manual of fruit insects. Fig. 287. — Adult of the rasp-berry cane-maggot. Enlarged. On leaving the egg shellthe young maggot crawlsdown the shoot for a shortdistance and then bur-rows its way into the tunneling abouthalf the length of theshoot the maggot worksits way nearly out tothe bark and deftly con-tinues its tunnel aroundthe shoot, thus girdlingit from the inside (). The part of theshoot above the girdlesoon wilts, shrinks in sizeand droops over. Soonafter the tip droops, a The flies appear in the latterpart of April, when the newraspberry shoots are a fewinches in height, and the femaledeposits * her comparativelylarge, prettily sculptured, elon-gate white eggs loosely near thetip of the shoot in the crotchformed by the bases of the tipleaves (Fig. 288). How soonthe eggs hatch is unknown,but it is doubtless in a Fig. 288. — Egg of the raspberry cane-niag-got in position at the base of a leaf (x 8). RASPBERRY, BLACKBERRY AND DEWBERRY INSECTS 331 dry rot sets in at the girdled point and the whole shoot usuallydries up and dies. After checking the growth in May the maggot proceeds toburrow downward in the pith, usually reaching the base nearthe surface of the ground some time in June. In late Juneand early July the maggots, without leaving their burrows,transform to pupaewithin the hard-ened dark brownlarval skin or pu-parium. Theadult, however,does not emergetill the followingApril, there beingbut one brood ayear. Control. With a littlewatchfulness thisraspberry pest canbe easily checked. Its presence can be quickly detected in May, as its work is thenvery conspicuous. The remedy is simple. As soon as a droop-ing tip is seen, either pull .up the shoot or cut it off severalinches below the girdle and burn it. This method faithfullycarried out throughout May will quickly check the is
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