. Annual report of the State Entomologist of Montana . ck, Man- THE STRAWBERRY LEAF-ROLLER, i. The strawberry leaf-roller is a fairly well known pest in someparts of the United States. In the state of Washington it has beenlooked upon as their most serious insect enemy of it has been in Montana for a number of years we have norecord of great injury from It occurs at Missoula, Helena, andMiles City, It receives its name from its habit of rolling andcrumpling the leaves of its host-plants. The larva which is small Phoxoptcris comptana Frol. MONTANA EXPERIMENT STATION. 17
. Annual report of the State Entomologist of Montana . ck, Man- THE STRAWBERRY LEAF-ROLLER, i. The strawberry leaf-roller is a fairly well known pest in someparts of the United States. In the state of Washington it has beenlooked upon as their most serious insect enemy of it has been in Montana for a number of years we have norecord of great injury from It occurs at Missoula, Helena, andMiles City, It receives its name from its habit of rolling andcrumpling the leaves of its host-plants. The larva which is small Phoxoptcris comptana Frol. MONTANA EXPERIMENT STATION. 177 and of a greenish color lives within the rolled or crumpled leavesfeeding from the inside. When abundant, the larvae not only eatparts of the folia*e but cause the remainder to turn brown. Thelarvae are very active and when taken into ones hand quickly wrig-gle out and drop to the ground. There are two broods, one appearing in June and the other inAugust. The larvae feed on the foliage of strawberry, raspberry, blackber-ry and various other Fig. 24. The Strawberry Leaf-roller: a, larva, natural size; b, anterior endof larva, seen from abovei, enlarged; c, moth, enlarged; d, posterior end oflarva, seen from above, enlarged. (First Rept. Insects of Mo., Riley, 1869.) THE CHERRY FRUIT-FLY. i. The plum curculio is responsible for most wormy cherries butcherry fruit-fly may appear in the market fruits and if in themarket is liable to escape to growing cherries. The cherry fruitfly as its name indicates is a fly and it is the larva or maggot thatcauses the damage. The work of the grub of the plum curculio isusually apparent from the exterior of the cherry, but in the caseof this maggot the cherries may from the outside appear to be per-fectlv sound. The cherry maggots are very light yellow in color and of theshape and size shown in the small black circle, above, in the accom-panying figure. The body of the fly is black and the head and legs are of a lightyellow color. The
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