Abstract
Abstract Agriotes obscurus (L.) wireworms assembled in increasing numbers at rows of treated (Agrox DL Plus seed treatment) and untreated wheat, Triticum aestivum L., planted at increasing densities (0, 0.15, 0.30, and 0.60 seeds/cm). In treated wheat plots at all planting densities, no wireworm damage to seedlings was apparent, and total wireworms taken in core samples in wheat rows increased according to the asymptotic equation y = B0(1 –e−Blx), where B0 is the asymptote, B1 is the slope of the initial rise, and x is the seeding density. The number of dead wireworms in treated plots increased linearly and intercepted the asymptotic models (theoretical point at which 100% mortality of assembled population occurs) at 0.95 seeds/cm on 11 June and 1.14 seeds/cm on 18 June 1996. Untreated wheat at all densities planted had severe wireworm damage and significantly reduced stand. Populations that had assembled at the surviving untreated wheat were fewer than in the treated wheat plots, and although increasing with seeding density, did not follow the asymptotic model. The data suggest that A. obscurus populations can be assembled and killed in fallowed fields in large numbers at treated trap crops of wheat over a 19-d period when planted in rows spaced 1 m apart at a linear seeding density of 1.5 seeds/cm.
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Claims 9
Claim · model-written summary
Wireworms assembled in increasing numbers at treated and untreated wheat rows as planting density rose.
- Taxon
- Triticum aestivum L.
Triticum aestivume0 - Treatment
- increasing densitiese0
- Interactor
- Agriotes obscurus (L.)
Agriotes obscuruse0pest - Outcome
- wireworms assemblede0
- Direction
- increasinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agriotes obscurus (L.) wireworms assembled in increasing numbers at rows of treated (Agrox DL Plus seed treatment) and untreated wheat, Triticum aestivum L., planted at increasing densities”
Claim · model-written summary
Treated wheat seedlings had no apparent wireworm damage at any planting density.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- treated wheat plotse0
- Interactor
- wireworme0pest
- Outcome
- no wireworm damage to seedlings was apparente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In treated wheat plots at all planting densities, no wireworm damage to seedlings was apparent”
t0“Wheat”
Claim · model-written summary
The number of wireworms sampled in treated wheat rows increased asymptotically with seeding density.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- wheat rowse0
- Interactor
- wirewormse0pest
- Outcome
- total wireworms taken in core samplese0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total wireworms taken in core samples in wheat rows increased according to the asymptotic equation y = B0(1 –e−Blx)”
t0“Wheat”
Claim · model-written summary
Dead wireworms in treated plots increased linearly with density, reaching the modeled intersection at 0.95 seeds/cm on 11 June.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- treated plotse0
- Interactor
- wirewormse0pest
- Outcome
- number of dead wirewormse0
- Direction
- increasede0
- Value
- 0.95 seeds/cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of dead wireworms in treated plots increased linearly and intercepted the asymptotic models (theoretical point at which 100% mortality of assembled population occurs) at 0.95 seeds/cm on 11 June”
t0“Wheat”
Claim · model-written summary
The modeled mortality intersection in treated wheat plots was 1.14 seeds/cm on 18 June 1996.
- Taxon
- WheatTriticum aestivumt0
- Interactor
- wirewormse1pest
- Outcome
- number of dead wirewormse1
- Value
- 1.14 seeds/cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1.14 seeds/cm on 18 June 1996”
e1“The number of dead wireworms in treated plots increased linearly”
t0“Wheat”
Claim · model-written summary
Untreated wheat suffered severe wireworm damage and significantly reduced stand at all densities.
- Taxon
- wheatTriticum aestivume0
- Interactor
- wireworme0pest
- Outcome
- severe wireworm damage and significantly reduced stande0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Untreated wheat at all densities planted had severe wireworm damage and significantly reduced stand”
Claim · model-written summary
Fewer wireworms assembled at surviving untreated wheat than at treated wheat.
- Taxon
- wheatTriticum aestivume0
- Interactor
- wirewormse1pest
- Outcome
- Populations that had assemblede0
- Direction
- fewere0
- Comparator
- treated wheat plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Populations that had assembled at the surviving untreated wheat were fewer than in the treated wheat plots”
e1“wireworms in treated plots”
Claim · model-written summary
Wireworms at surviving untreated wheat increased with seeding density without following the asymptotic model.
- Taxon
- wheatTriticum aestivume1
- Treatment
- seeding densitye0
- Interactor
- wirewormse2pest
- Outcome
- Populations that had assemblede1
- Direction
- increasinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“although increasing with seeding density, did not follow the asymptotic model”
e1“Populations that had assembled at the surviving untreated wheat”
e2“wireworms in treated plots”
Claim · model-written summary
The authors suggest treated wheat trap crops can aggregate and kill many A. obscurus in fallowed fields over 19 days.
- Taxon
- wheatTriticum aestivume0
- Treatment
- treated trap crops of wheate0
- Interactor
- A. obscurusAgriotes obscuruse0pest
- Outcome
- assembled and killed in fallowed fields in large numberse0
- Qualifier
- over a 19-d period when planted in rows spaced 1 m apart at a linear seeding density of 1.5 seeds/cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A. obscurus populations can be assembled and killed in fallowed fields in large numbers at treated trap crops of wheat over a 19-d period when planted in rows spaced 1 m apart at a linear seeding density of 1.5 seeds/cm”