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Integrated Pest Management Strategie...

Bloese, Joanna Bess.

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Integrated Pest Management Strategies for Tadpole Shrimp (Triops longicaudatus (LeConte) (Notostraca: Triopsidae) in California rice.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Integrated Pest Management Strategies for Tadpole Shrimp (Triops longicaudatus (LeConte) (Notostraca: Triopsidae) in California rice./
Author:	Bloese, Joanna Bess.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	55 p.
Notes:	Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
Contained By:	Dissertations Abstracts International81-04B.
Subject:	Entomology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13896641
ISBN:	9781085798426

Integrated Pest Management Strategies for Tadpole Shrimp (Triops longicaudatus (LeConte) (Notostraca: Triopsidae) in California rice.
Bloese, Joanna Bess.

Integrated Pest Management Strategies for Tadpole Shrimp (Triops longicaudatus (LeConte) (Notostraca: Triopsidae) in California rice. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 55 p.

Source: Dissertations Abstracts International, Volume: 81-04, Section: B.

Thesis (Ph.D.)--University of California, Davis, 2019.

This item is not available from ProQuest Dissertations & Theses.

The tadpole shrimp (Triops longicaudatus (Leconte); TPS) is a vernal pool crustacean native to the northern hemisphere. TPS is considered a living fossil because its basic morphology has changed little over the past 300 million years (Fisher, 1990; Mantovani et al., 2004). Still little is known about this enigmatic species. Tadpole shrimp are a pest for rice farmers because their swimming and burrowing behavior uproots young rice seedlings. Several studies examined the effects of cultural, chemical and biological management strategies for managing TPS in California rice fields, as well as studies exploring early indicators of TPS activity and damage as monitoring tools. Results suggested several alternative effective control options available to farmers. A mosquito fish, Gambusia affinis was just as effect as the industry standard pesticide (lambda-cyhalothrin, Warrior II®, Syngenta) at managing TPS in the field. Clothianidin (Belay®, Bayer CropScience) demonstrated consistent control of TPS within the field and lab over five trials between 2015-2018. Changes in cultural management practices due to policy changes which resulted in reductions in post-harvest rice straw burning were examined on TPS hatch count. Burning rice straw had a significant positive influence on the hatching of TPS the following season. Water turbidity (measured using a scale of 1-4) and the number of dislodged seedlings were both significantly correlated with TPS counts in field studies. Turbidity exhibited the highest correlations with TPS counts, suggesting that with further refinement it could play a valuable role in monitoring TPS populations. These studies offer glimpses into future alternative and sustainable management strategies of TPS in California rice.

ISBN: 9781085798426Subjects--Topical Terms:

615844
Entomology.
Subjects--Index Terms:

California rice

Integrated Pest Management Strategies for Tadpole Shrimp (Triops longicaudatus (LeConte) (Notostraca: Triopsidae) in California rice.
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500 $a Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
500 $a Advisor: Rosenheim, Jay A.
502 $a Thesis (Ph.D.)--University of California, Davis, 2019.
506 $a This item is not available from ProQuest Dissertations & Theses.
506 $a This item must not be sold to any third party vendors.
520 $a The tadpole shrimp (Triops longicaudatus (Leconte); TPS) is a vernal pool crustacean native to the northern hemisphere. TPS is considered a living fossil because its basic morphology has changed little over the past 300 million years (Fisher, 1990; Mantovani et al., 2004). Still little is known about this enigmatic species. Tadpole shrimp are a pest for rice farmers because their swimming and burrowing behavior uproots young rice seedlings. Several studies examined the effects of cultural, chemical and biological management strategies for managing TPS in California rice fields, as well as studies exploring early indicators of TPS activity and damage as monitoring tools. Results suggested several alternative effective control options available to farmers. A mosquito fish, Gambusia affinis was just as effect as the industry standard pesticide (lambda-cyhalothrin, Warrior II®, Syngenta) at managing TPS in the field. Clothianidin (Belay®, Bayer CropScience) demonstrated consistent control of TPS within the field and lab over five trials between 2015-2018. Changes in cultural management practices due to policy changes which resulted in reductions in post-harvest rice straw burning were examined on TPS hatch count. Burning rice straw had a significant positive influence on the hatching of TPS the following season. Water turbidity (measured using a scale of 1-4) and the number of dislodged seedlings were both significantly correlated with TPS counts in field studies. Turbidity exhibited the highest correlations with TPS counts, suggesting that with further refinement it could play a valuable role in monitoring TPS populations. These studies offer glimpses into future alternative and sustainable management strategies of TPS in California rice.
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