Abstract
BACKGROUND: Thrips tabaci Lindeman (Thysanoptera: Thripidae) is a major pest on onion, Allium cepa L., worldwide. In 2010, research was conducted in a commercial onion field in north-western Italy in order (i) to evaluate the efficacy of different insecticides and of the SAR activator acibenzolar-S-methyl, (ii) to correlate thrips infestation levels with bulb size and weight at harvest and (iii) to implement a reliable thrips sampling method. Efficacy of the three active ingredients spinosad, lambda-cyhalothrin and acibenzolar-S-methyl on local thrips populations were also evaluated in laboratory bioassays. RESULTS: During field surveys, the highest and the lowest thrips infestations were observed in plots treated with lambda-cyhalothrin and with spinosad and acibenzolar-S-methyl respectively. The effectiveness of spinosad was also confirmed in laboratory bioassays. At harvest, bulb size and weight did not significantly differ between treatments. A high correlation with visual inspection made plant beating a suitable sampling method for routine practice, enabling a good estimate of thrips infestation. CONCLUSION: Damage caused by thrips is often not severe enough to warrant the frequent pesticide applications the crops receive in north-western Italy. The use of spinosad and acibenzolar-S-methyl is suggested as an alternative to conventional insecticides for the preservation of natural enemies.
Abstract from the paper’s OpenAlex record; open copy licensed other-oa. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Spinosad and acibenzolar-S-methyl plots had the lowest thrips infestation in onion compared with lambda-cyhalothrin.
- Taxon
- onion
Allium cepae0 - Treatment
- spinosad and acibenzolar-S-methyle1
- Interactor
- Thrips tabaci
Thrips tabacit0pest - Outcome
- thrips infestationse1
- Direction
- loweste1
- Comparator
- lambda-cyhalothrine1
- Setting
- commercial onion field in north-western Italye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“research was conducted in a commercial onion field in north-western Italy”
e1“During field surveys, the highest and the lowest thrips infestations were observed in plots treated with lambda-cyhalothrin and with spinosad and acibenzolar-S-methyl respectively”
t0“Integrated management of Thrips tabaci (Thysanoptera: Thripidae) on onion”
Claim · model-written summary
Lambda-cyhalothrin plots had the highest thrips infestation in onion compared with spinosad and acibenzolar-S-methyl.
- Taxon
- onionAllium cepae0
- Treatment
- lambda-cyhalothrine1
- Interactor
- Thrips tabaciThrips tabacit0pest
- Outcome
- thrips infestationse1
- Direction
- higheste1
- Comparator
- spinosad and acibenzolar-S-methyle1
- Setting
- commercial onion field in north-western Italye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“research was conducted in a commercial onion field in north-western Italy”
e1“During field surveys, the highest and the lowest thrips infestations were observed in plots treated with lambda-cyhalothrin and with spinosad and acibenzolar-S-methyl respectively”
t0“Integrated management of Thrips tabaci (Thysanoptera: Thripidae) on onion”
Claim · model-written summary
Spinosad effectiveness against thrips was confirmed in laboratory bioassays.
- Taxon
- onionAllium cepae0
- Treatment
- spinosade2
- Interactor
- Thrips tabaciThrips tabacit0pest
- Outcome
- effectivenesse2
- Setting
- laboratory bioassayse2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“research was conducted in a commercial onion field in north-western Italy”
e2“The effectiveness of spinosad was also confirmed in laboratory bioassays”
t0“Integrated management of Thrips tabaci (Thysanoptera: Thripidae) on onion”
Claim · model-written summary
Bulb size and weight at harvest did not significantly differ between treatments in onion.
- Taxon
- onionAllium cepae0
- Treatment
- treatmentse3
- Outcome
- bulb size and weighte3
- Direction
- did not significantly differe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“research was conducted in a commercial onion field in north-western Italy”
e3“At harvest, bulb size and weight did not significantly differ between treatments”
Claim · model-written summary
Plant beating showed a high correlation with visual inspection of thrips infestation in onion.
- Taxon
- onionAllium cepae0
- Treatment
- plant beatinge4
- Outcome
- correlation with visual inspectione4
- Comparator
- visual inspectione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“research was conducted in a commercial onion field in north-western Italy”
e4“A high correlation with visual inspection made plant beating a suitable sampling method for routine practice, enabling a good estimate of thrips infestation”
Claim · model-written summary
Thrips damage in north-western Italy is often not severe enough to warrant the frequent pesticide applications onion crops receive.
- Taxon
- onionAllium cepae0
- Outcome
- frequent pesticide applicationse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“research was conducted in a commercial onion field in north-western Italy”
e5“Damage caused by thrips is often not severe enough to warrant the frequent pesticide applications the crops receive in north-western Italy”
Claim · model-written summary
Spinosad and acibenzolar-S-methyl are suggested as alternatives to conventional insecticides for preserving natural enemies in onion.
- Taxon
- onionAllium cepae0
- Treatment
- spinosad and acibenzolar-S-methyle6
- Interactor
- natural enemiese6biocontrol_agent
- Outcome
- preservation of natural enemiese6
- Comparator
- conventional insecticidese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“research was conducted in a commercial onion field in north-western Italy”
e6“The use of spinosad and acibenzolar-S-methyl is suggested as an alternative to conventional insecticides for the preservation of natural enemies”
The same questions in other papers
lambda-cyhalothrin · Thrips tabaci · Allium cepa (onion)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
spinosad · Thrips tabaci · Allium cepa (onion)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →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.