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Injury and damage by Threecornered a...

Pulakkatu-thodi, Ishakh.

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Injury and damage by Threecornered alfalfa hopper, Spissistilus festinus (Say), in group IV soybean.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Injury and damage by Threecornered alfalfa hopper, Spissistilus festinus (Say), in group IV soybean./
作者:	Pulakkatu-thodi, Ishakh.
面頁冊數:	71 p.
附註:	Source: Masters Abstracts International, Volume: 48-05, page: 2797.
Contained By:	Masters Abstracts International48-05.
標題:	Agriculture, General. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1475058
ISBN:	9781109718201

Injury and damage by Threecornered alfalfa hopper, Spissistilus festinus (Say), in group IV soybean.
Pulakkatu-thodi, Ishakh.

Injury and damage by Threecornered alfalfa hopper, Spissistilus festinus (Say), in group IV soybean. - 71 p.

Source: Masters Abstracts International, Volume: 48-05, page: 2797.

Thesis (M.S.)--Mississippi State University, 2010.

Threecornered alfalfa hopper, Spissistilus festinus (Say), is a pest of soybean during vegetative and reproductive stages. The primary damage from this pest is girdling of the main stem during vegetative stages and girdling of the petioles during reproductive stages. Previous research determined that yield losses are greater during reproductive stages than vegetative stages. I hypothesized that some reproductive stages are more vulnerable to damage than other stages. I used field cages infested with different pest densities at five reproductive stages of group IV soybean. A greenhouse study compared the injury and damage caused by the adults and nymphs. The field study showed that the threecornered alfalfa hopper did not significantly impact yields at the growth stages studied. Adults preferred to feed on leaf petioles while nymphs fed mostly on stems. Significant yield reduction was noticed at growth stage R4 in the greenhouse due to adult and nymphs compared to control.

ISBN: 9781109718201Subjects--Topical Terms:

1017510
Agriculture, General.

Injury and damage by Threecornered alfalfa hopper, Spissistilus festinus (Say), in group IV soybean.
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520 $a Threecornered alfalfa hopper, Spissistilus festinus (Say), is a pest of soybean during vegetative and reproductive stages. The primary damage from this pest is girdling of the main stem during vegetative stages and girdling of the petioles during reproductive stages. Previous research determined that yield losses are greater during reproductive stages than vegetative stages. I hypothesized that some reproductive stages are more vulnerable to damage than other stages. I used field cages infested with different pest densities at five reproductive stages of group IV soybean. A greenhouse study compared the injury and damage caused by the adults and nymphs. The field study showed that the threecornered alfalfa hopper did not significantly impact yields at the growth stages studied. Adults preferred to feed on leaf petioles while nymphs fed mostly on stems. Significant yield reduction was noticed at growth stage R4 in the greenhouse due to adult and nymphs compared to control.
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