The Shipley Collection of Scientific Papers, Volume 2381920 |
From inside the book
Results 1-5 of 55
Page 14
... effect upon the mature larva . One would suppose that these stubs , often wholly submerged in water- soaked earth for weeks at a time , would absorb , during the long period of hibernation , a fatal amount of dampness from the rain or ...
... effect upon the mature larva . One would suppose that these stubs , often wholly submerged in water- soaked earth for weeks at a time , would absorb , during the long period of hibernation , a fatal amount of dampness from the rain or ...
Page 7
... effect of unfavorable conditions . Attention was called to its re- lation to the so - called physiological diseases ... effects of the attack of dif ferent members of the genus on beets . The life history of the beet leafhopper was given ...
... effect of unfavorable conditions . Attention was called to its re- lation to the so - called physiological diseases ... effects of the attack of dif ferent members of the genus on beets . The life history of the beet leafhopper was given ...
Page 9
... effect of dif ferent times of planting on the amount of blight . Spisar ( 1910 ) reported the result of the examination of some beets sent from Idaho in 1909 and reviewed the writer's paper ( Ball , 1909 ) . He concluded that the ...
... effect of dif ferent times of planting on the amount of blight . Spisar ( 1910 ) reported the result of the examination of some beets sent from Idaho in 1909 and reviewed the writer's paper ( Ball , 1909 ) . He concluded that the ...
Page 45
... effect has been noticeable . Prein records the same results in the Yakima out- break , especially where shaded by hops . Whether the temperature that affects the beet is that of the air on the leaves or the temperature of the soil on ...
... effect has been noticeable . Prein records the same results in the Yakima out- break , especially where shaded by hops . Whether the temperature that affects the beet is that of the air on the leaves or the temperature of the soil on ...
Page 46
... EFFECT ON BEET SEED PRODUCTION The presence of curly - leaf in a region makes the production of sugar - beet seed more than doubly hazardous . As the seed beet requires two years for its development and is equally susceptible during the ...
... EFFECT ON BEET SEED PRODUCTION The presence of curly - leaf in a region makes the production of sugar - beet seed more than doubly hazardous . As the seed beet requires two years for its development and is equally susceptible during the ...
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.