. Annual report. Entomological Society of Ontario; Insect pests; Insects. ENTOMOLOGICAL SOCIETY 61 miles due west of Ottawa. It is typically a sandy country and very rough. The agricultural land is cleared from bush. Some clearings comprise four or five farms of about 100 acres each in extent. Others are only a single farm cleared from the surrounding bush. The species of grasshoppers concerned were Camnula pellucida Scud., Melanoplus angustipennis Dodge, M. bivittatus Say and Dissosteira Caro- lina L. C. pellucida Scud, and M. angustipennis Dodge were responsible for almost all the damage as
. Annual report. Entomological Society of Ontario; Insect pests; Insects. ENTOMOLOGICAL SOCIETY 61 miles due west of Ottawa. It is typically a sandy country and very rough. The agricultural land is cleared from bush. Some clearings comprise four or five farms of about 100 acres each in extent. Others are only a single farm cleared from the surrounding bush. The species of grasshoppers concerned were Camnula pellucida Scud., Melanoplus angustipennis Dodge, M. bivittatus Say and Dissosteira Caro- lina L. C. pellucida Scud, and M. angustipennis Dodge were responsible for almost all the damage as M. bivittatus and D. Carolina L. restricted their feeding mostly to headlands and roadsides. The grasshoppers as soon as the hay had been cut entered the grain crops and caused considerable damage to the developing grain. The leaves of all grains were eaten down to the ground giving the crops a stripped appearance. Damage to oats was most noticeable because the grasshoppers cut the grain right off but in wheat and rye the grasshoppers fed on the kernels without doing this. In order to avoid an almost total loss the farmers cut some of their oat fields green and used them for hay. One field of two acres of oats, for example, which was left to ripen, yielded only two bags of threshed grain. In the gardens cabbage, carrots, parsnips, beans and corn were all subject to attack and damage to the leaves of turnips and potatoes was quite noticeable. After the grasshoppers had invaded the grain control with poisoned baits was attempted. The two baits consisted of: bran, 25 pounds; Paris green, 1% pounds; salt, 1 pound; molasses, 1 pint, and water about 5 gallons, and a similar bait without molasses. From counts of dead grass- hoppers per square yard made after baiting, it appeared that rather unsatisfactory results were obtained, as only from six to seven dead grass- hoppers per square yard were found. However, from casual observations of the living hoppers remaining it appeared that be
Size: 2124px × 1177px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
