Bulletin..
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The adult insect is a gi ayish-brown beetle and may be found eating peculiar chain- like holes in the leaves in July and August. The eggs laid at this time hatch and the grubs drop into the ground, where they feed upon the roots. Grubs may be found at the roots almost any mcnth of the year.
This is a difficult insect to control and no single one of the known remedies should alone be relied uj)on, but rather all should be diligently applied.
Spraying the leaves at the time the beetle is feeding ...with some form of arsenic will accomplish a little. The beetles are not heavy feeders and as they remain on the leaves but a few days the poison should be as concentrated as possible. Too much Paris green will injure the foliage, therefore, arsenate of lead, 10 pounds to 100 gallons of water, is better.
The beetles are easily jarred from the leaves and can be caught in sheets first spread under the vines. Special devices are ar- ranged for this work.
Thorough, deep cultivation in the early fall at the time the fidia is in the pupal state will crush as many as can be reached.
What to read after Bulletin..?
You can find similar books in the "Read Also" column, or choose other free books by New York (State) Bureau of Horticultural Inspection. [from Old Catalog] to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The adult insect is a gi ayish-brown beetle and may be found eating peculiar chain- like holes in the leaves in July and August. The eggs laid at this time hatch and the grubs drop into the ground, where they feed upon the roots. Grubs may be found at the roots almost any mcnth of the year.
This is a difficult insect to control and no single one of the known remedies should alone be relied uj)on, but rather all should be diligently applied.
Spraying the leaves at the time the beetle is feeding ...with some form of arsenic will accomplish a little. The beetles are not heavy feeders and as they remain on the leaves but a few days the poison should be as concentrated as possible. Too much Paris green will injure the foliage, therefore, arsenate of lead, 10 pounds to 100 gallons of water, is better.
The beetles are easily jarred from the leaves and can be caught in sheets first spread under the vines. Special devices are ar- ranged for this work.
Thorough, deep cultivation in the early fall at the time the fidia is in the pupal state will crush as many as can be reached.
What to read after Bulletin..?
You can find similar books in the "Read Also" column, or choose other free books by New York (State) Bureau of Horticultural Inspection. [from Old Catalog] to read onlineMoreLess
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