. 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 . t of paraffin; and as the Wire-worms usually feed near the surface, the smell, or the paraffinin dilute state driven down by the rain, would probably soontell on them. Mr. Whitehead mentions in his Eeport previously quotedthat, opening a trench in the autumn after the poles aredown, and forming a ring close round the plant-centres, andputting in earth, ashes or sawdust, saturated with paraffin oil,is an excelle
. 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 . t of paraffin; and as the Wire-worms usually feed near the surface, the smell, or the paraffinin dilute state driven down by the rain, would probably soontell on them. Mr. Whitehead mentions in his Eeport previously quotedthat, opening a trench in the autumn after the poles aredown, and forming a ring close round the plant-centres, andputting in earth, ashes or sawdust, saturated with paraffin oil,is an excellent plan in the case of plantations that are badlyinfested (taldncj care not to jntt too much oil, lest it shouldkill the roots). Likewise that planters who suspect thepresence of Wireworms very frequently set a row of Potatoesbetween the rows of Hop-plants, in order to draw the Wire-worms from the young Hop-plants. And further, thatdressings of Kape-dust dug in round infested plants willalso draw the Wireworms, relieving them for a time, but alsotending to collect the Wireworms round or near the plant-centres. MANGOLDS. Mangold or Beet Fly. Anthomyia (Chortophila) hetcE, ,^ *w^-^ A. hetcc (female), ma^.; line showing spread of wings, nat. size ; puim, nat. sizeand maguilicd. Eggs (after Farsky), mag. MANGOLD on BEET FLY. 145 The Beet Fly damaj:^es the crops by means of its maggots,which feed on the pulp of the Beet or Mangold leaves, andthus reduce the leaves, or large patches of them, to nothingbut dry skin. This kind of attack does not appear to havebeen generally observed in the country till the year 1880,■when the Mangold maggot was prevalent in many localities,and especially in Westmoreland and Cumberland, where, of1624 acres of Mangolds grown in those counties, it is reportedthat all were infested. It had, however, been noticed inCumberland several years before the above date ; on whichsubject Mr. Watson Horusby, of Abbey Town, Holme Cultram,Cumberland, favoure
Size: 1664px × 1501px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookidmanualofinju, bookyear1890
