. The century book of gardening; a comprehensive work for every lover of the garden. Gardening. PEA AND BEAN WEEVILS. 1 and 2. Sitones crinitus, nat. size and mag. 3 and 4. ,, lineatus. ,, „ grubs feed on the roots, and are white, legless, and about iin. long. The Turnip Gall Weevil (Ceutorhynchas Sulcicollis).— There is yet another weevil that at times is decidedly injurious in our gardens, as its grubs form galls on the roots of Turnips and Cabbages of all kinds. These galls vary much in size, but sometimes form a knob on the root fin. in diameter, and the roots at times are covered with the
. The century book of gardening; a comprehensive work for every lover of the garden. Gardening. PEA AND BEAN WEEVILS. 1 and 2. Sitones crinitus, nat. size and mag. 3 and 4. ,, lineatus. ,, „ grubs feed on the roots, and are white, legless, and about iin. long. The Turnip Gall Weevil (Ceutorhynchas Sulcicollis).— There is yet another weevil that at times is decidedly injurious in our gardens, as its grubs form galls on the roots of Turnips and Cabbages of all kinds. These galls vary much in size, but sometimes form a knob on the root fin. in diameter, and the roots at times are covered with them. The weevils lay their eggs in the roots in May or June, and as soon as feeding-time comes the galls begin to grow. Generally there is only one grub in each gall, but sometimes there are several. When the grubs are full grown they make their way out of the galls and form cells-in the earth, in which they eventually become chrysalides. It is only when the insect is in this condition that one can destroy it, unless the roots are used before the grubs leave them, so that as soon as an infested crop has been removed the soil should be well dressed with gas lime and thoroughly broken up, and no plants that the weevils are likely to attack grown on it for at least a year. Particular care should be taken in this respect with seed beds. The weevil is about Jin. in length, very broad in proportion, and glossy black in colour ; the grubs are nearly 2-ioin. long, and white with yellowish heads. White Cabbage Butterflies (Pieris brassier and P. rapi).—The caterpillars of these two common butter- flies, besides attacking Cabbages of various kinds, Cauliflowers, Turnips, etc., are very destructive to the leaves of Mignonette, Tropxolums of various kinds, and Horse-radish. When plants are infested, pick them. WHITE CABBAGE BUTTERFLY. 1. White Cabbage Butterfly (Pieris brassiccs). 2. Eggs. 3. Caterpillar. 4. Chrysalis. off by hand, unless the pests are very abundant, when the plants mi
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectgardening, bookyear19
