. Sessional papers of the Dominion of Canada 1901 . The Pea Weevil is theshort, roundish, hard beetle which occurs, at the time when it is most often noticed,among seed pease from which it has emerged, leaving a perfectly round hole in thehollowed-out pea, in which it passed its preparatory stages. This insect is shownenlarged, and of the natural size at figure 6. The Pea Moth, as it is generallyseen by farmers, is in the form of the caterpillar, usually called the worm, in thepea pods, where the white caterpillars devour the green pease from the outside, leavinga ragged cavity and a mass of e
. Sessional papers of the Dominion of Canada 1901 . The Pea Weevil is theshort, roundish, hard beetle which occurs, at the time when it is most often noticed,among seed pease from which it has emerged, leaving a perfectly round hole in thehollowed-out pea, in which it passed its preparatory stages. This insect is shownenlarged, and of the natural size at figure 6. The Pea Moth, as it is generallyseen by farmers, is in the form of the caterpillar, usually called the worm, in thepea pods, where the white caterpillars devour the green pease from the outside, leavinga ragged cavity and a mass of excrement. The perfect insect, the moth, Fig. 8, is veryrarely seen. It resembles very much the Codling Moth, of the apple, but is of ageneral slaty gray colour instead of bronzy brown. The Destructive Pea Aphis is asoft-bodied green plant-louse, shown below, very much enlarged. These plant-licecluster in enormous numbers at the ends of the shoots of peas, of all kinds, cloversand vetches. THE DESTKUCTIVE PEA APHIS (Ncctarophora destructor, Jnsn.).. Fig. 7.—The Destructive Pea Aphis; winged viviparous female—enlarged.(After Johnson, Md. Agr. Exp. Sta. Bui. 63.) i6—m 212 EXPERIMENTAL FARMS. 64 VICTORIA, A. 1901 In my last report considerable space was devoted to the Destructive Pea Aphis,a new pest of the pea, of which no previous attack had been recorded in Canada. Theinjury extended from all parts of the Maritime Provinces, through Quebec to thewestern boundaries of Ontario, and the loss in many places was serious. Not only didit occur in Canada, but much greater injury was caused by it in certain of the UnitedStates, as Maryland, Delaware, New Jersey, New York, Connecticut, &c. Excellentwork has been done upon this insect in Maryland by its describer, Prof. W. G. John-son, and in Delaware, by Prof. E. Dwight Sanderson, both of whom have publishedbulletins on the subject. In Canada during the past season, although the Destructive Pea Aphis has occurredthroughout most of t
Size: 2054px × 1217px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcanadapa, bookcentury1900, bookdecade1900, bookyear1901