. 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 . ase of great efficacy. If (as appears likely, from the young Cuckoos beingfirst seen on the shoots near or lying on the ground) theyhatch out of eggs amongst the shoots, or in the groundbeneath the surface of the hill, dressings such as have beenfound useful for preventing young Hop Aphides coming up(see p. 123), could not fail to be useful, or (generally) anydressing or disturbance of the soil near the Hop whi
. 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 . ase of great efficacy. If (as appears likely, from the young Cuckoos beingfirst seen on the shoots near or lying on the ground) theyhatch out of eggs amongst the shoots, or in the groundbeneath the surface of the hill, dressings such as have beenfound useful for preventing young Hop Aphides coming up(see p. 123), could not fail to be useful, or (generally) anydressing or disturbance of the soil near the Hop which wouldnot hurt the plants, and would disturb or throw out the egg oryoung Cuckoo. Till we know certainly where the egg is laid, we cannot besure what measures will forestall attack; but the followingnote, also sent me from East Worldham, near Alton, Hants,points to liability of transportation :— A grower had a plantation infested by Cuckoos ; it wasgrubbed and the poles removed during the winter to anotherground, which up to this time was free. It is now as badlytroubled as the old garden.—(G. T.) FEVER FLY. 129 Fever Fly.* Dihiji/ms riilij(, Meigen; D. febriUa, Dilojphus vulgaris : Female Fly magnified and nat. size, flying round Hop-cones. This Fly sometimes appears in vast swarms, and in themost various kinds of phices. It appeared amongst the Hop-cones at Eainham, in Kent, in 1882; it has been observed inenormous numbers off the Norfolk coast: in 1862 it was re-corded as hanging in milHons on flowers and in bunches ongrasses. At the beginning of April, in 1884, specimens of larvaewere forwarded to me from near Sittingbourne, with the in-formation that they were found in a piece of Hop-root sentaccompanying, and appeared to be feeding on it, and that thesame kind of grubs were then rather numerous in the Hop-hills. The piece of Hop was partly decayed, and, on cleaningit to gain a sight of the state of surface, it appeared freshlyinjured, as if the grubs wer
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