Arsenical injury through the bark of fruit trees
The periderm on the smooth bark of apple trees is practically impervious to arsenical solutions. If such solutions are admitted during the growing season, more or less injury will follow. The solutions may be admitted through wounds, lenticels, or latent buds. As the trees become older and rough bark is produced, the cracks made in its production will admit arsenical solutions to the inner tissues, which will be injured. Roots and branches of equal size and with similar bark are about equally susceptible to arsenical injury. If the injury is rapid, for example, the arsenic gaining entrance through a wound in the smooth bark, very definite longitudinal streaks will be produced in the bark and sapwood. If the injury is slow, the arsenic gradually entering through cracks of the normal rough bark, such streaks are very little in evidence. Paint applied to fresh wounds offers a partial, but not complete protection. Of the arsenical compounds used as insecticides, calcium arsenite is the most injurious when admitted to the inner bark. The injury is not necessarily due to impurities in the arsenical compounds. 11 references, 11 tables.
- OSTI ID:
- 7204791
- Journal Information:
- J. Agric. Res. (Washington, D.C.); (United States), Journal Name: J. Agric. Res. (Washington, D.C.); (United States) Vol. 8:8; ISSN JAGRA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Relative density, equilibrium moisture content, and dimensional stability of western hemlock bark
Comparative phytotoxicity among four arsenical herbicides
Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION
AIR POLLUTION
APPLES
ARSENIC
BIOLOGICAL EFFECTS
CRACKS
ELEMENTS
FOOD
FRUIT TREES
FRUITS
INSECTICIDES
PESTICIDES
PLANTS
POLLUTION
ROOT ABSORPTION
ROOTS
SEMIMETALS
SENSITIVITY
TOXICITY
TREES
UPTAKE