. Cirtus fruits under irragation. Citrus fruits; Fruit-culture. Fig. 22 31. Barnacle Scale.—The barnacle scale is very similar to the Florida wax scale except in its height, which is equal to its width. The sides rise abruptly from the margin, so that it resembles a barnacle in shape. 32. Mealy Bugs.—In Fig. 23 are shown, in half their natural size^ colonies of mealy bugs on grapefruit. The injury they do is very apparent from the illustration. Mealy bugs are dry-weather insects, and consequently they are not the serious pests in the Florida citrus region that they are in the California groves
. Cirtus fruits under irragation. Citrus fruits; Fruit-culture. Fig. 22 31. Barnacle Scale.—The barnacle scale is very similar to the Florida wax scale except in its height, which is equal to its width. The sides rise abruptly from the margin, so that it resembles a barnacle in shape. 32. Mealy Bugs.—In Fig. 23 are shown, in half their natural size^ colonies of mealy bugs on grapefruit. The injury they do is very apparent from the illustration. Mealy bugs are dry-weather insects, and consequently they are not the serious pests in the Florida citrus region that they are in the California groves. Usually mealy bugs are most troublesome in the spring, from March to June, which is apt to be a dry § 28 CITRUS FRUITS IN GULF-COAST STATES 31 period in Florida. These insects approach the extent of a pest more or less periodically and in many cases will disappear and reappear very suddenly, depending on whether the climatic conditions are favorable or unfavorable for their growth Ramy seasons have a tendency to hold the mealy bugs in check, and dry seasons are particulariy favorable for their increase. All parts of the tree, including the leaf, branches, and fruit particulariy the fruit, are attacked by this insect. Masses ot the insects, eggs, and young may be clustered on the fruit. Fig. 23 usually in sheltered places as along the midrib or at the junc- tion of a leaf with the stem. A most favorite situation is between two oranges or grapefruit that are in contact. This is partic- ulariy annoying in the case of grapefruit, which more frequently grows m clusters. The mealy bug secretes a particulariy sticky honeydew, which, with the accompanying sooty mold, results m a most unsightly fruit and one hard to clean. The ordinary washmg machine often fails to remove this, and, in the vigor- ous scrubbing rendered necessary, the fruit is apt to get scratched or bruised, thus making an entrance place for the molds that. Please note that these images are extracted from scanned
Size: 1912px × 1307px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectcitrusfruits, booksubjectfruitcultur
