The Shipley Collection of Scientific Papers, Volume 2381920 |
From inside the book
Results 1-5 of 61
Page 7
... produces some injury in the heads as they fill . Cephus was found mining wheat near Hettinger in southwestern North Dakota , July 18 , 1917. September 22 , 1917 , infested wheat was found near Mott , 30 miles north of Hettinger . In ...
... produces some injury in the heads as they fill . Cephus was found mining wheat near Hettinger in southwestern North Dakota , July 18 , 1917. September 22 , 1917 , infested wheat was found near Mott , 30 miles north of Hettinger . In ...
Page 24
... produced than stubble alone could possibly make , the surface of the ground being too warm for the hand after the fire had died down . Even after this severe treatment it was found that , as far as could be learned by a minute search ...
... produced than stubble alone could possibly make , the surface of the ground being too warm for the hand after the fire had died down . Even after this severe treatment it was found that , as far as could be learned by a minute search ...
Page 9
leaves , the first curly - leaf that had ever been produced in that laboratory . This paper contains many valuable ... producing curly - top carried on in 1908 , and discussed the relation of this disease to the mosaic disease and ...
leaves , the first curly - leaf that had ever been produced in that laboratory . This paper contains many valuable ... producing curly - top carried on in 1908 , and discussed the relation of this disease to the mosaic disease and ...
Page 11
... produced the disease . Smith and Boncquet ( 1915 - b ) confirmed their discovery of a specific organism in the sieve - tubes of curly - leaf beets . They were able to find this organism in the youngest and most minute vascular bundles ...
... produced the disease . Smith and Boncquet ( 1915 - b ) confirmed their discovery of a specific organism in the sieve - tubes of curly - leaf beets . They were able to find this organism in the youngest and most minute vascular bundles ...
Page 28
... produced the thick- ened veins . This is also doubtful as there are varieties of let- tuce and cabbage that show ... producing the swollen veins on horseradish , but the condition referred to is common where no leafhoppers occur . Shaw ...
... produced the thick- ened veins . This is also doubtful as there are varieties of let- tuce and cabbage that show ... producing the swollen veins on horseradish , but the condition referred to is common where no leafhoppers occur . Shaw ...
Common terms and phrases
abdominal segment abundant adults alfalfa weevil Allorhina nitida antennae appear apple Arzama Arzama obliqua attack August average bean beet borers burrow cage Calendra cat-tail cent Cephus Cephus cinctus climatic color Cotinis crop curly-leaf dark brown decora deposited disease dorsal early eggs elytra emerged entered soil Entomology experiments feeding female field fig moth figs flowers foliage food plants Galerucella grass ground grubs habits hatched head hibernation hopperburn inches infested injury insect instar Japanese beetle July July 25 killed large number larvæ leaf leafhopper leaves legs length Mesothoracic metathorax molted nymphs oblonga observed occur orchard oviposition parasites period pest Plate potato prepupae prothorax pupa pupal pupation rainfall region rhizome season seeds serghi setae showing Smyrna species specimens spiracles spray spring stage stem sterilized surface temperature third instar thorax trees tubercles Typha latifolia Utah ventral width wings winter writer yellow
Popular passages
Page 4 - If it consists in whole or in part of a filthy, decomposed, or putrid animal or vegetable substance, or any portion of an animal unfit for food, whether manufactured or not, or if it is the product of a diseased animal, or one that has died otherwise than by slaughter. Sec. 8. That the term
Page 9 - ... determine whether or not it is safe and profitable to add 20 per cent more of the lime-sulphur concentrate to a given amount of water, thus increasing the strength of the summer spray to that extent. In 1913 a proprietary spraying material in powder form, known under the trade name of "Soluble Sulphur," was used at the rate of 2 pounds to 50 gallons of water in combination with one pound of dry arsenate of lead. While this material appeared to be quite effective in scab control that season very...
Page 61 - In order that the ecological relationships of the insect fauna of the cat-tail plant may be better understood, the first part of this paper deals with the ecology of the cat-tail plant. In the second part, the life history and biology of the insect inhabitants of the plant are discussed. This part of the paper has been treated from a systematic point of view, considering the insects under their respective orders, rather than grouping them according to their life habits. In the resume", composing...
Page 16 - FH CHITTENDEN, in charge of truck crop and stored product insect investigations. AD HOPKINS, in charge of forest insect investigations. WD HUNTER, in charge of southern field crop insect investigations. FM WEBSTER, in charge of cereal and forage insect investigations. AL QUAINTANCE, in charge of deciduous fruit insect investigations. EF PHILLIPS, in charge nf bee culture.
Page 23 - Sc. D., In Charge of Truck Crop and Stored Product Insect Investigations.