 So readily do they relinquish their hold when brought into contact with a moving body, that the point of a needle swept across the surface of an infested leaf will usually be found to have several mites adhering to it. The same agencies which assist in...  Florida Fruits and how Raise Them - Página 114por Helen Garnie Warner - 1886 - 343 páginasVista completa - Acerca de este libro
 | United States. Department of Agriculture - 1884 - 756 páginas
...to have several mites adhering to it. The same agencies which assist in the spread of scale-insects undoubtedly serve to scatter the mites. Not only do...that of all other modes of dissemination, both of scale-insect and rust-mite, that of transportation by spiders is the most important, the most constant,... | |
 | United States. Department of Agriculture - 1884 - 744 páginas
...to have several mites adhering toil. The same agencies which, assist in the spread of scale-insects undoubtedly serve to scatter the mites. Not only do...distances by casting out hundreds of feet of silken line, I o be wafted by the winds and caught in distant trees, has often been noted. There is little doubt... | |
 | government printing office - 1884 - 732 páginas
...to have several mites adhering to it. The same agencies which assist in the spread of scale-iusects undoubtedly serve to scatter the mites. Not only do...the restless movements of their little attendants. • both of scale-insect ami rust-mite, that of transportation by spiders is tlie most important, the... | |
 | Henry Guernsey Hubbard - 1885 - 276 páginas
...Scale-insects undoubtedly serve to scatter the Mites. Not only do they climb readily aloug the webs of spiders, but they may frequently be seen upon the...be wafted by the winds and caught in distant trees, ban often been noted. There is little doubt that of all other modes of dissemination, both of Scale-insect... | |
 | Henry Guernsey Hubbard - 1885 - 278 páginas
...Scale-insects undoubtedly serve to scatter the Mites. Not only do they climb readily along the webs of spiders, but they may frequently be seen upon the...the restless movements of their little attendants. to be wafted by the winds and canght in distant trees, has often been noted. There is little doubt... | |
 | 1884 - 814 páginas
...to have several mites adhering to it. The same agencies which assist in the spread of scale-insects undoubtedly serve to scatter the mites. Not only do...the restless movements of their little attendants. both of scale-insect and rust-mite, that of transportation by spiders is the most important, the most... | |
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