. A manual of injurious insects with methods of prevention and remedy for their attacks to food crops, forest trees, and fruit. To which is appended a short introduction to entomology . ere the infested Peas stood, and burn it there, so asto get rid at once of all grubs remaining in the pods or quitenear the surface of the ground. For field treatment, as the haulm could not well be spared,it would be desirable, if a Pea-growing district was infested,to plough deeply, so as to bury the chrysalids well down duringthe winter; or to skim the surface lightly, so as to throw themopen to attack of bi
. A manual of injurious insects with methods of prevention and remedy for their attacks to food crops, forest trees, and fruit. To which is appended a short introduction to entomology . ere the infested Peas stood, and burn it there, so asto get rid at once of all grubs remaining in the pods or quitenear the surface of the ground. For field treatment, as the haulm could not well be spared,it would be desirable, if a Pea-growing district was infested,to plough deeply, so as to bury the chrysalids well down duringthe winter; or to skim the surface lightly, so as to throw themopen to attack of birds. But commonly the regular rotationof crops might be expected to prevent this infestation gettingahead. In garden treatment it might be worth while to watchwhether the little grey moth infested the Pea-plants duringflowering time, especially in the evening, and in case they werenoticeable in any great numbers it might make a difference inthe amount of egg-laying to dust the plants with any powderdressing as soot, &c., which might be obnoxious to the moths,but would not do harm to the leafage or blossoms. Pea and Clover Weevils. Siioncs lincatus, Linn, (and other species).. 1 ami 2, ,S. crinitUH ; 8 and 1, .S. liiwdtua, nat. size and mag.; 5, leaf notched by Weevils. PEA AND CLOVER WEEVILS. 165 These beetles are often very injurious to the leafage ofPeas, as well as to that of other leguminous crops, as Beans,Clover, &c. The attacked crops may be known by the leavesbeing scooped out at the edge, as figured. The beetles begintheir work at the edges of the leaves, and gradually eat theirway onwards, until, in bad attacks, nothing is left but thecentral rib, or merely the leaf-stalk. Great numbers of the weevils appear in March and later on,and do great mischief, but up to the year 1882 the place ofdeposit of the eggs, and the history of these weevils in theirearly stages was still as completely unknown as when Curtis,in his Farm Insects, mentioned of the aS. lincatns that itsti
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