. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. SL-fnml titaieratiun (viviparous female). liy the male, deposits little sliiiiy Ijlack eggs at the base of the buds and on the twigs. Egg-laying may commence early in October and goes on till November. These eggs usu- ally hatcli earl}' in April, but I have observed the lice in March. Besides prunes this aphis is also found on peach, nectarine and apple, but I have not seen it breeding on those plants. I am inclined to believe it tlies to irmbelliferous plants (3)
. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. SL-fnml titaieratiun (viviparous female). liy the male, deposits little sliiiiy Ijlack eggs at the base of the buds and on the twigs. Egg-laying may commence early in October and goes on till November. These eggs usu- ally hatcli earl}' in April, but I have observed the lice in March. Besides prunes this aphis is also found on peach, nectarine and apple, but I have not seen it breeding on those plants. I am inclined to believe it tlies to irmbelliferous plants (3) and breeds there. An allied species, A. [inniifolia, is shown (Fig. 252 Ti). rEEVENTION AND TrEAT^IENT. This pest can easily be kept in hand if attacked in its early stages, but when once the females liaN-e set to work to produce those countless living young and they curl up the leaves it is most difficult to destroy the pest, for not only are they protected bv the curled leaf, but also by the honeydew and meal whicli help to repel the insecticide. Washing should start before the blossom buds open, so as to destroy the mother-queen before she produces her green young. In any case it should never be later than the date of falling of the blossom ; up to tliis time some good will be done. The oliject should be, however, to kill the mother-queens before the blossom appears. Considerable lienefit has been found from lime wash, salt and waterglass heavily sprayed over the plums and damsons just before the buds burst. The eggs are laid in crevices, bud groups, etc., where the lime wash col- lects, and \ery many are thus jirevented from hatching. The writer has seen trees comj)letely clear of tlie Aplih jirinii and the I'/mniiJoii linnin/i (Ho])- Damson Aphis) by this treatment, and it cannol 1h> too stron<dv. FIG. 2.', —MliTIIKIi-lJUKEX I'V I'LUJI .U'llls IX .WIl. OK BlI'. (Muell enlar.^'ed.). Please note that these images are extracted from scanned page images that may hav
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectpests, bookyear
