Abstract
The hypothesis that the differences between the effectiveness of larvae of Allothrombium ovatum against Aphis gossypii on cotton but their limited effect on Rhopalosiphum padi on wheat and Myzus persicae are due to mite preference for A. gossypii-cotton is tested in laboratory experiments. Contrary to the prediction of the hypothesis, larvae of A. ovatum showed no significant preference for any leaves when given cotton, wheat and rape in three-choice tests, nor for any aphid species when given A. gossypii, R. padi and Myzus persicae, nor for any aphid-plant association when given A. gossypii on cotton, R. padi on wheat and M. persicae on rape. Observations on population dynamics of mite-aphid on three host plant species showed that larval mite populations were coupled with that of A. gossypii oncotton and R. padi on wheat, but not with M. persicae on rape. Patterns of larval mite interaction of three aphid species in the field are discussed in the light of the results of these experiments.
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Claims 6
Claim · model-written summary
Allothrombium ovatum larvae showed no significant preference for any leaves of cotton, wheat and rape in three-choice tests.
- Taxon
- cotton, wheat and rape
Gossypium hirsutum_Brassica_napus_-_Habit.jpg?width=60)
Brassica napus
Triticum aestivume0 - Interactor
- A. ovatumAllothrombium ovatume0biocontrol_agent
- Outcome
- preference for any leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“larvae of A. ovatum showed no significant preference for any leaves when given cotton, wheat and rape in three-choice tests”
Claim · model-written summary
Allothrombium ovatum larvae showed no significant preference for any aphid species.
- Taxon
- cotton, wheat and rapeGossypium hirsutumBrassica napusTriticum aestivume0
- Interactor
- A. ovatumAllothrombium ovatume0biocontrol_agent
- Outcome
- any aphid speciese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“larvae of A. ovatum showed no significant preference for any leaves when given cotton, wheat and rape in three-choice tests”
e1“nor for any aphid species when given A. gossypii, R. padi and Myzus persicae”
Claim · model-written summary
Allothrombium ovatum larvae showed no significant preference for any aphid-plant association.
- Taxon
- cotton, wheat and rapeGossypium hirsutumBrassica napusTriticum aestivume0
- Interactor
- A. ovatumAllothrombium ovatume0biocontrol_agent
- Outcome
- any aphid-plant associatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“larvae of A. ovatum showed no significant preference for any leaves when given cotton, wheat and rape in three-choice tests”
e2“nor for any aphid-plant association when given A. gossypii on cotton, R. padi on wheat and M. persicae on rape”
Claim · model-written summary
Larval mite populations were coupled with Aphis gossypii populations on cotton.
- Taxon
- cottonGossypium hirsutume3
- Interactor
- A. gossypii
Aphis gossypiie3pest - Outcome
- larval mite populationse3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“larval mite populations were coupled with that of A. gossypii oncotton and R. padi on wheat, but not with M. persicae on rape”
Claim · model-written summary
Larval mite populations were coupled with Rhopalosiphum padi populations on wheat.
- Taxon
- wheatTriticum aestivume3
- Interactor
- R. padi
_Figure_1_a.jpg?width=60)
Rhopalosiphum padie3pest - Outcome
- larval mite populationse3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Figure_1_a.jpg?width=500)
Verbatim
e3“larval mite populations were coupled with that of A. gossypii oncotton and R. padi on wheat, but not with M. persicae on rape”
Claim · model-written summary
Larval mite populations were not coupled with Myzus persicae populations on rape.
- Taxon
- rapeBrassica napuse3
- Interactor
- M. persicae
Myzus persicaee3pest - Outcome
- larval mite populationse3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“larval mite populations were coupled with that of A. gossypii oncotton and R. padi on wheat, but not with M. persicae on rape”