The Shipley Collection of Scientific Papers, Volume 2381920 |
From inside the book
Results 1-5 of 81
Page 13
... shown by Fig . 1. Townsend ( 1908 ) and Shaw ( 1910 ) quote Smith as concluding that the disease described by Arthur and Golden *** from Indiana was the same as the west- PLATE II Fig . 1. A typical healthy beet . Fig . 2. A beet that ...
... shown by Fig . 1. Townsend ( 1908 ) and Shaw ( 1910 ) quote Smith as concluding that the disease described by Arthur and Golden *** from Indiana was the same as the west- PLATE II Fig . 1. A typical healthy beet . Fig . 2. A beet that ...
Page 15
... shown in a series of curves . These curves are not intended to represent the proportional total injury from year to year , but only that occuring in the most seriously - damaged locations . Owing to the widespread distribu- tion in the ...
... shown in a series of curves . These curves are not intended to represent the proportional total injury from year to year , but only that occuring in the most seriously - damaged locations . Owing to the widespread distribu- tion in the ...
Page 23
... shown the same data for E. strobi , a two- brooded species also occurring on beets to show the contrast be- tween the long , indefinite and overlapping periods of a single- brooded species as compared with the short , definite broods of ...
... shown the same data for E. strobi , a two- brooded species also occurring on beets to show the contrast be- tween the long , indefinite and overlapping periods of a single- brooded species as compared with the short , definite broods of ...
Page 48
... shown that a 15 per cent kerosene emulsion must be used . By using a drag to pull the leaves of the beets over and directing the spray at the beet at the instant the leafhoppers were jumping to avoid it , a large proportion of them may ...
... shown that a 15 per cent kerosene emulsion must be used . By using a drag to pull the leaves of the beets over and directing the spray at the beet at the instant the leafhoppers were jumping to avoid it , a large proportion of them may ...
Page 49
... shown that beets which were irrigated early enough and often enough so that they never wilted during the day for lack of moisture , but continued a vigorous growth at all times , not only made larger beets , but they were better shaped ...
... shown that beets which were irrigated early enough and often enough so that they never wilted during the day for lack of moisture , but continued a vigorous growth at all times , not only made larger beets , but they were better shaped ...
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.