Abstract
The ban on neonicotinoid seed treatments in the EU has created major challenges for maize and sugar beet production, as these chemicals have been highly effective in controlling early-season pests, including wireworms (Agriotes spp.), sugar beet weevil (Asproparthenis punctiventris Germar) (SBW) and sugar beet flea beetles (Chaetocnema tibialis Illiger) (SBFB). However, adequate alternatives have not yet been introduced. The aim of this research was to get insights on the biological activity of insecticides with distinct modes of action and comparatively more favorable ecotoxicological profiles than neonicotinoids, chlorantraniliprole, spinosad, and azadirachtin, applied as seed treatments in maize and sugar beet against wireworms in maize and against SBW and SBFB in sugar beet. In laboratory trials, each insecticide was tested as a seed treatment at three different doses. Thiamethoxam was included as the standard treatment (positive control). Among the tested insecticides, spinosad seed treatment showed the highest efficacy against wireworms and was superior to both the standard insecticide and chlorantraniliprole, while azadirachtin showed no effect. None of the tested insecticides provide satisfactory control of SBW. In contrast, SBFB responded to all three insecticide treatments, with efficacy comparable to, or even better than, the standard insecticide. These results suggest that chlorantraniliprole, azadirachtin, and spinosad may all represent promising candidates for sugar beet seed treatment to protect young plants against SBFB. Future research should focus on developing seed treatment formulations and field and semi-field trials as well as evaluating combinations of active ingredients and their suitability for integration into IPM programs. These findings provide a basis for further development of seed treatment strategies aimed at reducing dependence on neonicotinoids in maize and sugar beet production.
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Claims 5
Claim · model-written summary
Spinosad seed treatment had the highest efficacy against wireworms, superior to the standard insecticide and chlorantraniliprole.
- Treatment
- spinosad seed treatmente0
- Interactor
- wirewormse0pest
- Outcome
- efficacy against wirewormse0
- Direction
- higheste0
- Comparator
- standard insecticidee0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spinosad seed treatment showed the highest efficacy against wireworms and was superior to both the standard insecticide and chlorantraniliprole”
t0“Maize”
Claim · model-written summary
Azadirachtin seed treatment showed no effect against wireworms.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“azadirachtin showed no effect”
t0“Maize”
Claim · model-written summary
None of the tested insecticide seed treatments gave satisfactory control of sugar beet weevil.
- Taxon
- Sugar Beet
Beta vulgaris subsp. vulgarist0 - Treatment
- tested insecticidese0
- Interactor
- SBWe0pest
- Outcome
- satisfactory control of SBWe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“None of the tested insecticides provide satisfactory control of SBW”
t0“Sugar Beet”
Claim · model-written summary
Sugar beet flea beetles responded to all three insecticide treatments, with efficacy comparable to or better than the standard insecticide.
- Taxon
- Sugar BeetBeta vulgaris subsp. vulgarist0
- Treatment
- all three insecticide treatmentse0
- Interactor
- SBFBe0pest
- Outcome
- efficacye0
- Direction
- comparable to, or even better thane0
- Comparator
- standard insecticidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SBFB responded to all three insecticide treatments, with efficacy comparable to, or even better than, the standard insecticide”
t0“Sugar Beet”
Claim · model-written summary
Chlorantraniliprole, azadirachtin and spinosad may all be promising candidates for sugar beet seed treatment to protect young plants against sugar beet flea beetles.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Interactor
- SBFBe0pest
- Outcome
- promising candidates for sugar beet seed treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorantraniliprole, azadirachtin, and spinosad may all represent promising candidates for sugar beet seed treatment to protect young plants against SBFB”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.