Insects Injurious to Stored Grains And Their Ground Products
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When infesting grains, this caterpillar eats out the embryo, leaving the rest -of the kernel. A single larva will destroy a dozen or more grains, according to its size, and when thus engaged it spins its silk over everything in its immediate vicinity.
The species is found everywhere in the United States.
Fumigation with carbon bisulfid or with hydrocyanic acid gas, or the use of artificial heat, are the standard measures for the destruction of this as of most other insect pests of the granary a...nd the mill.
GRANARY BEETLES AND WEEVILS The hard-bodied insects known as beetles and weevils differ from granary moths in having biting jaws and horny wing-covers inclosing the membranous lower wings. They pass thru the same stages of development as the moths, but in the young, active stage, tho similar to caterpillars, they may be commonly distinguished by the absence of abdominal legs. In the third, or pupal, stage, they are not protected by a cocoon, and are usually white, with the appendages free.
What to read after Insects Injurious to Stored Grains And Their Ground Products?
You can find similar books in the "Read Also" column, or choose other free books by Alexandre Arsene Girault to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
When infesting grains, this caterpillar eats out the embryo, leaving the rest -of the kernel. A single larva will destroy a dozen or more grains, according to its size, and when thus engaged it spins its silk over everything in its immediate vicinity.
The species is found everywhere in the United States.
Fumigation with carbon bisulfid or with hydrocyanic acid gas, or the use of artificial heat, are the standard measures for the destruction of this as of most other insect pests of the granary a...nd the mill.
GRANARY BEETLES AND WEEVILS The hard-bodied insects known as beetles and weevils differ from granary moths in having biting jaws and horny wing-covers inclosing the membranous lower wings. They pass thru the same stages of development as the moths, but in the young, active stage, tho similar to caterpillars, they may be commonly distinguished by the absence of abdominal legs. In the third, or pupal, stage, they are not protected by a cocoon, and are usually white, with the appendages free.
What to read after Insects Injurious to Stored Grains And Their Ground Products?
You can find similar books in the "Read Also" column, or choose other free books by Alexandre Arsene Girault to read onlineMoreLess
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