Catalogue and Treatment of Insects. Part 28
Description
This section is from the book "The Standard Cyclopedia Of Horticulture Vol2", by L. H. Bailey. See also: Western Garden Book: More than 8,000 Plants - The Right Plants for Your Climate - Tips from Western Garden Experts.
Catalogue and Treatment of Insects. Part 28
Treatment
Tobacco sprays. Spray with paris green one pound in one hundred gallons water sweetened with twenty pounds brown sugar when thrips first appear.
Orange
See Citrus.
Orchids. Hemispherical Scale
See Citrus.
Orchids Isosoma (Isosoma Orchidearum)
Small, white larvae infesting the buds causing them to become unduly enlarged.
Treatment
Cut off and destroy infested buds.
Scale Insects
Several species.
Treatment
Wash plants with nicotine solutions and soapsuds.
Papaver. Plant-Louse (Aphis Rumicis)
Shining black plant-louse that clusters on leaves and stems.
Treatment
Parsnip. Parsley-Worm (Papilio Asterias)
Larva, 1 1/2 inches long, light yellow or greenish yellow with lines and spots; feeds upon leaves of parsley, celery, carrot, and related plants. When the worm is disturbed it ejects from the anterior end two yellow horns, with an offensive odor.
Remedies
Hand-picking. Poultry are said to eat them sometimes. Upon parsnips, arsenicals.
Parsnip-Louse (Hyadaphis Pastinacae)
Greenish plant-lice.
Treatment
Contact insecticides.
Parsnip Web-Worm (Depressaria Heracliana)
Larva, about 1/2 inch long, feeding in the flower-cluster and causing it to become contorted.
Treatment
Arsenicals, applied as soon as the young worms appear, and before the cluster becomes distorted. Burn the distorted umbels. Destroy all wild carrots.
Parsnip Leaf-Miner (Acidia Fratria)
Small, whitish maggots mining the leaves.
Treatment
Hand-pick infested leaves.
Passiflora. Mealy-Bugs
See Citrus.
Pea. Cut-Worms
See Corn.
Pea-Weevil, Or Pea-Bug (Bruchus Pisi)
A small brown-black beetle, living in peas over winter. The beetle escapes in fall and spring, and lays its eggs in young pea-pods, and the grubs live in the growing peas.
Catalogue of Insects, continued.
Treatment
Hold over infested seed one year before planting. Late planting in some localities. Fumigation with carbon bisulfid.
Pea Aphis (Macrosiphum Pisi)
A rather large green plant-louse, often attacking peas in great numbers and causing enormous losses.
Treatment
Rotation of crops, early planting. When peas are grown in rows, the brush-and-cultivator method may be used. The plant-lice are brushed from the plants with pine boughs, and a cultivator follows stirring the soil. This operation should be performed while the sun is hot and the ground dry. Most of the lice will be killed before they can crawl back to the plants. Repeat every three to seven days.
Peach. Black Aphis (Aphis Persica-Niger)
A small black or brown plant-louse, which attacks the tops and roots of peach trees. When upon the roots it is a very serious enemy, stunting the tree and perhaps killing it. Thrives in sandy lands.
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