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Discovery and Development of Novel Parasitic Nematodes to Control Slugs in Agriculture.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Discovery and Development of Novel Parasitic Nematodes to Control Slugs in Agriculture./
作者:	Cutler, James.
面頁冊數:	1 online resource (132 pages)
附註:	Source: Dissertations Abstracts International, Volume: 84-02, Section: B.
Contained By:	Dissertations Abstracts International84-02B.
標題:	Agriculture. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29237853click for full text (PQDT)
ISBN:	9798841564324

Discovery and Development of Novel Parasitic Nematodes to Control Slugs in Agriculture.
Cutler, James.

Discovery and Development of Novel Parasitic Nematodes to Control Slugs in Agriculture. - 1 online resource (132 pages)

Source: Dissertations Abstracts International, Volume: 84-02, Section: B.

Thesis (Ph.D.)--Liverpool John Moores University (United Kingdom), 2021.

Includes bibliographical references

Terrestrial gastropods are highly pestiferous and pose a significant global threat to sustainable agriculture, horticulture and floriculture. Current control methods rely on metaldehyde formulated bait pellets. However, metaldehyde can harm non target organisms and cause environmental pollution. Metaldehyde is also due to be banned for use in the UK by 2022. A viable alternative is the gastropod parasitic nematode Phasmarhabditis hermaphrodita, which has been formulated into a biological control agent (Nemaslug®) by BASF Agricultural Specialities. However, the same strain of P. hermaphrodita (DMG0001) has been produced in an artificial environment for over 25 years and research suggests this strain is losing beneficial traits (e.g. virulence and host finding) and failing to provide protection against slug damage. The primary aim of this thesis was to use a collection of wild isolated Phas marhabditis species (P. hermaphrodita, P. neopapillosa and P. californica) to investigate whether they are more virulent than the commercial strain of P. hermaphrodita (DMG0001) to the pestiferous slug Deroceras invadens and the snail Cornu aspersum in laboratory experiments. Host feeding inhibition, numbers of nematode dauers produced on gastropod cadavers and natural variation in chemotaxis behaviour were also investigated. Additionally, the impact of virulent strains on beneficial non- target organisms and the mechanism of host behavioural manipulation were explored. Multiple wild strains were found to perform better than the commercial strain in regards to virulence, feeding inhibition, proliferation on cadavers and locating host cues. This research has demonstrated that other members of the Phasmarhabditis genus can be utilised as safe and effective biological control agents. This thesis presents which Phasmarhabditis species show the most potential for pathogenic ability and host seeking. Results obtained from this work have resulted the production of a new slug biocontrol product by BASF, utilising P. californica.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798841564324Subjects--Topical Terms:

518588
Agriculture.
Index Terms--Genre/Form:

542853
Electronic books.

Discovery and Development of Novel Parasitic Nematodes to Control Slugs in Agriculture.
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500 $a Source: Dissertations Abstracts International, Volume: 84-02, Section: B.
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502 $a Thesis (Ph.D.)--Liverpool John Moores University (United Kingdom), 2021.
504 $a Includes bibliographical references
520 $a Terrestrial gastropods are highly pestiferous and pose a significant global threat to sustainable agriculture, horticulture and floriculture. Current control methods rely on metaldehyde formulated bait pellets. However, metaldehyde can harm non target organisms and cause environmental pollution. Metaldehyde is also due to be banned for use in the UK by 2022. A viable alternative is the gastropod parasitic nematode Phasmarhabditis hermaphrodita, which has been formulated into a biological control agent (Nemaslug®) by BASF Agricultural Specialities. However, the same strain of P. hermaphrodita (DMG0001) has been produced in an artificial environment for over 25 years and research suggests this strain is losing beneficial traits (e.g. virulence and host finding) and failing to provide protection against slug damage. The primary aim of this thesis was to use a collection of wild isolated Phas marhabditis species (P. hermaphrodita, P. neopapillosa and P. californica) to investigate whether they are more virulent than the commercial strain of P. hermaphrodita (DMG0001) to the pestiferous slug Deroceras invadens and the snail Cornu aspersum in laboratory experiments. Host feeding inhibition, numbers of nematode dauers produced on gastropod cadavers and natural variation in chemotaxis behaviour were also investigated. Additionally, the impact of virulent strains on beneficial non- target organisms and the mechanism of host behavioural manipulation were explored. Multiple wild strains were found to perform better than the commercial strain in regards to virulence, feeding inhibition, proliferation on cadavers and locating host cues. This research has demonstrated that other members of the Phasmarhabditis genus can be utilised as safe and effective biological control agents. This thesis presents which Phasmarhabditis species show the most potential for pathogenic ability and host seeking. Results obtained from this work have resulted the production of a new slug biocontrol product by BASF, utilising P. californica.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Agriculture. $3 518588
650 4 $a Bans. $3 3564372
650 4 $a Young adults. $3 598212
650 4 $a Hyaluronic acid. $3 1614347
650 4 $a Mollusks. $2 fast $3 2109455
650 4 $a Cadavers. $3 3563160
650 4 $a Rape plants. $3 3703286
650 4 $a Parasites. $3 671720
650 4 $a Mortality. $3 533218
650 4 $a Wheat. $3 660846
650 4 $a Seeds. $3 573605
650 4 $a Oilseeds. $3 865931
650 4 $a Horticulture. $3 555447
650 4 $a Nematodes. $3 3561776
650 4 $a Wildlife conservation. $2 fast $3 542165
650 4 $a Red clover. $3 3703287
650 4 $a Agronomy. $3 2122783
650 4 $a Animal sciences. $3 3174829
650 4 $a Parasitology. $3 635062
650 4 $a Wildlife management. $3 571816
655 7 $a Electronic books. $2 lcsh $3 542853
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690 $a 0471
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690 $a 0475
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710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Liverpool John Moores University (United Kingdom). $3 3556313
773 0 $t Dissertations Abstracts International $g 84-02B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29237853 $z click for full text (PQDT)