Insects and insecticidesA practical manual concerning noxious insects and the methods of preventing their injuries . Fig. 37. Strawberry leaf folded by Leaf-roller. look brown and scorched. It is sometimes exceed-ingly destructive, and has been considered by someentomologists the most injurious of the insect enemies>of the strawberry. It probably occurs in nearly all-the Northern states; and, is also found in Europe,where, however, it is does not prove hatches from eggs laid in spring upon the straw-berry plants by a small, reddish-brown moth, whichis accurately represented s
Insects and insecticidesA practical manual concerning noxious insects and the methods of preventing their injuries . Fig. 37. Strawberry leaf folded by Leaf-roller. look brown and scorched. It is sometimes exceed-ingly destructive, and has been considered by someentomologists the most injurious of the insect enemies>of the strawberry. It probably occurs in nearly all-the Northern states; and, is also found in Europe,where, however, it is does not prove hatches from eggs laid in spring upon the straw-berry plants by a small, reddish-brown moth, whichis accurately represented slightly magnified at , c. The larva attains its full growth in June,. INJURING THE LEAVES. 91 when it is nearly half an inch long, of a brownishor greenish col-or, with a shin-ing, }^ellowish-brown head. Iti s represented natural size at Fig. 88. Strawberry Leaf-roller: a, larva, natural„. , size; 6, front of larva; c, moth ; rf, hind end rig. oo, a~, the of larva; 6, c, and d magnified. head and anterior segments of the body are shownat b, and the posterior extremity at cl of the samefigure. The larva pupates within the rolled leaf,and about midsummer emerges as a moth. Thesemoths deposit eggs for a second brood of caterpillarsthat feed upon the leaves late in summer, changingto pupae early in autumn, and, passing the winter inthat condition, emerge again as moths the , thus completing the cycle of the year. Inthe Southern States there are three, and possiblyfour, broods a year. Remedies.—The best way to destroy this pest isto mow the field soon after the strawberry crop isgathered, and after leaving it a day or two to becomedry, bu
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Keywords: ., bookcentury1800, bookdecade1890, bookidi, booksubjectinsecticides