. Agricultural news. Agriculture -- West Indies; Plant diseases -- West Indies. Fii;. 20. Eggs .<nd L.\kv,\e. II., Egijs, and '<., larva, uf lace-wing fly ; ( lady-bird. All enlarged. larva of. figures are again inserted. Fig. 19 .shows two forms of lady- bird commonly found in cotton fields. The larva of a lady- bird is shown in fig. 20, c. The lace-wing fly, whose eggs and larva are illustrated in fig. 20, is also a beneficial insect. Fig. 21 shows the cotton aphis upon which the lady- birds and the lace-wing fly feed. The aphis does not very often become destructive ; it generally att
. Agricultural news. Agriculture -- West Indies; Plant diseases -- West Indies. Fii;. 20. Eggs .<nd L.\kv,\e. II., Egijs, and '<., larva, uf lace-wing fly ; ( lady-bird. All enlarged. larva of. figures are again inserted. Fig. 19 .shows two forms of lady- bird commonly found in cotton fields. The larva of a lady- bird is shown in fig. 20, c. The lace-wing fly, whose eggs and larva are illustrated in fig. 20, is also a beneficial insect. Fig. 21 shows the cotton aphis upon which the lady- birds and the lace-wing fly feed. The aphis does not very often become destructive ; it generally attacks young cotton, but cotton which is healthy and growing ra[)idly will generally out-grow the aphis Much attack. It will usually be found on the very young shoots and tender leaves, large numbers of them being closely packed together. This same aphis attacks several other plants, and from these cotton may become infested. It is desirable that all who are engaged in cotton cultiva- tion should become familiar with the beneficial , as well as with the pests, in order that the forreer may be recognized as friends of the, planter and that no apprehension may be felt when they are found in the cotton fields. Fig. 21. Cotton Aphis enlarged. Natural size- indicated by Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Great Britain. Imperial Dept. of Agriculture for the West Indies. Bridgetown, Barbados, Bowen & sons;
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Keywords: ., bookauthorgreatbritainimperiald, bookcentury1900, bookdecade1900
