Bulletin, Броеве 22–76New Hampshire Agricultural Experiment Station, 1894 |
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Страница 8
... spring , even and continue present about ten days . As soon as the blossoms open sufficiently for the insect to insert its ovipositor , the eggs -often nearly a dozen in number - are deposited inside the blossom envelopes . Three or ...
... spring , even and continue present about ten days . As soon as the blossoms open sufficiently for the insect to insert its ovipositor , the eggs -often nearly a dozen in number - are deposited inside the blossom envelopes . Three or ...
Страница 9
... spring when they become pupa and shortly afterwards again change . to adult flies . These midges appear to have decided preferences among va- rieties of pears , the Lawrence being the favorite . Remedies . The only stage at which this ...
... spring when they become pupa and shortly afterwards again change . to adult flies . These midges appear to have decided preferences among va- rieties of pears , the Lawrence being the favorite . Remedies . The only stage at which this ...
Страница 10
... spring they come forth from their hiding places and deposit their eggs about the buds and on rough bark . These eggs are very small , and of the extraordinary form represented in Fig . 4. When first deposited they are yellowish , but ...
... spring they come forth from their hiding places and deposit their eggs about the buds and on rough bark . These eggs are very small , and of the extraordinary form represented in Fig . 4. When first deposited they are yellowish , but ...
Страница 11
... spring after the eggs hatch out and before the first brood matures , with kerosene emulsion diluted with twenty - five parts of water . This is a simple and satisfactory remedy ; if applied soon after a shower has washed off much of the ...
... spring after the eggs hatch out and before the first brood matures , with kerosene emulsion diluted with twenty - five parts of water . This is a simple and satisfactory remedy ; if applied soon after a shower has washed off much of the ...
Страница 13
... spring they emerge to feed upon the opening leaves . They again make tubes , which serve as protective cases . feeding six or seven weeks they become full - grown : then they form silken cocoons , generally in a rolled leaf or between ...
... spring they emerge to feed upon the opening leaves . They again make tubes , which serve as protective cases . feeding six or seven weeks they become full - grown : then they form silken cocoons , generally in a rolled leaf or between ...
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A. H. WOOD acre AGRICULTURAL EXPERIMENT STATION appearance apple Apple Maggot army worm ARTS AGRICULTURAL EXPERIMENT ashes Assistant Chemist average bark beetles blue vitriol Bordeaux mixture Bulletin canker-worm cent CLARENCE Codling Moth COLLEGE AGRICULTURAL EXPERIMENT COLLEGE OF AGRICULTURE color cost crop disease early blight eggs Entomologist EXPERIMENT STATION DURHAM feeding feet fertilizers foliage FRED fruit fungous gallons grade gravel HAMPSHIRE COLLEGE AGRICULTURAL hatch hole Horn Fly injury insect July LAMSON larva larvæ late leaves LEIGH HUNT lime maggots MECHANIC ARTS AGRICULTURAL MECHANIC ARTS DURHAM MORSE MURKLAND N. H. BOARD orchard outer Paris green pears pest PETTEE plants plot potash potatoes pounds pupa Railroad Worm RICHARD FITZGERALD road Rock maple samples scab scabby season seed side soil spraying spring Station are sent stone sub-irrigation sugar TALLANT tapped tent caterpillar tiles tion tomato trees tubers unsprayed varieties vines WEED wood yield
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Страница 1 - June 30, 1898 ; that we have found the same well kept, and classified as above, and that the receipts for the year from the treasurer of the United States are shown to have been...
Страница 1 - Americana: Agricultural Entomology) : "The losses occasioned by insects injurious to agriculture in the United States, are, in the aggregate, enormous, and have been variously estimated at from $300,000,000 to $400,000,000 annually. It will never be possible to fully protect our crops from the ravages of the many species that injuriously affect them; but it is the aim of the economic entomologist to prevent as much of the loss as possible and at the very least expense. To do so effectually, the chief...
Страница 7 - Weigh out 6 pounds of copper sulphate, then tie the same in a piece of coarse gunny sack and suspend it just beneath the surface of the water. By tying the bag to a stick laid across the top of the barrel no further attention will be required. In another vessel...
Страница 43 - Acting Director. ANNUAL STATEMENT Of the Hatch Fund of the New Hampshire College of Agriculture and the Mechanic Arts, for the year ending June 30, 1900. RECEIPTS. Cash received from United States treasurer . . $15,000.00 EXPENDITURES. Cash paid for salaries .... $9,362.81 labor .... 1,400.43 publications . . 1,363.15 Cash paid for postage and stationer...
Страница 11 - The male (Fig. 15) is a winged moth with feathery antne. iiie and very hairy fore legs. The general color is ashygray, the front wings being crossed by undulated bands of darker shade, with two black markings on the outer edge near the tip and a white spot on the inner edge also near the tip. He may frequently be seen sitting...
Страница 37 - From experiments which I have made I am satisfied that where fencelumber can be easily obtained it may be used to advantage as a substitute for the ditch or trench by being secured on edge and then smeared with kerosene or coal tar (the latter being more particularly useful) along the upper edge. By means of laths and a few nails the boards may be so secured that they will slightly slope away from the field to be protected. Such a barrier will prove effectual where the worms are not too persistent...
Страница 36 - They cut a trench as before ; then took round and smooth sapling sticks, of six or eight inches diameter and six or eight feet in length, sharpened them to a point, and with these made holes in the bottom of the ditch, once in two or three feet ; and as their meadows were bottom lands, they experienced no difficulty in extending these holes to two or three feet in depth below the bottom of the trench. The sides of these holes were made smooth by the bar or lever which made the holes, and as soon...
Страница 13 - ... for about two-thirds of their length are black, the remaining third is yellow, and they are ornamented with bands and spots arranged in the following manner : a yellow spot on each shoulder, a broad, yellow, curved band or arch, of which the yellow scntel...