Abstract
This study was carried out in two oases located in the south-west of Tunisia to investigate the efficacy of the oophagous parasitoid Trichogramma cacoeciae against Ectomyelois ceratoniae on date palm trees. The first oasis (Hezoua) is characterized by a cropping system divided into three levels of cultures. In the second oasis (Douz), orchards were based on the monoculture of the Deglet Noor cultivar. Parasitoids were released with three doses 26,000, 36,000 and 46,000 Trichogramma/ha. The impact of Trichogramma releases was evaluated by monitoring the egg parasitism, male catches of E. ceratoniae through pheromone traps, fruit damage during the whole season and fruit infestation at harvest. Trichogramma cacoeciae accomplished higher egg parasitism in Hezoua oasis (19.71 ± 1.02%) as compared to Douz oasis (8.43± 1.03%). Inundative releases of T. cacoeciae in the two oases resulted in varying degrees of pest control and they were not sufficient to limit economic losses.
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Claims 3
Claim · model-written summary
Egg parasitism by Trichogramma cacoeciae on date palm was higher in Hezoua oasis than in Douz oasis.
- Taxon
- date palm trees
Phoenix dactyliferae0 - Interactor
- Ectomyelois ceratoniae
Ectomyelois ceratoniaee0pest - Second interactor
- Trichogramma cacoeciaee1biocontrol_agent
- Outcome
- egg parasitisme1
- Direction
- highere1
- Value
- 19.71 ± 1.02%e1
- Qualifier
- 8.43± 1.03%e1
- Comparator
- Douz oasise1
- Setting
- Hezoua oasise1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the efficacy of the oophagous parasitoid Trichogramma cacoeciae against Ectomyelois ceratoniae on date palm trees”
e1“Trichogramma cacoeciae accomplished higher egg parasitism in Hezoua oasis (19.71 ± 1.02%) as compared to Douz oasis (8.43± 1.03%)”
Claim · model-written summary
Inundative releases of Trichogramma cacoeciae gave varying degrees of pest control on date palm.
- Taxon
- date palm treesPhoenix dactyliferae0
- Treatment
- Inundative releases of T. cacoeciaee2
- Interactor
- Ectomyelois ceratoniaeEctomyelois ceratoniaee0pest
- Second interactor
- T. cacoeciaee2biocontrol_agent
- Outcome
- pest controle2
- Qualifier
- varying degreese2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the efficacy of the oophagous parasitoid Trichogramma cacoeciae against Ectomyelois ceratoniae on date palm trees”
e2“Inundative releases of T. cacoeciae in the two oases resulted in varying degrees of pest control and they were not sufficient to limit economic losses”
Claim · model-written summary
Inundative releases of Trichogramma cacoeciae were not sufficient to limit economic losses on date palm.
- Taxon
- date palm treesPhoenix dactyliferae0
- Treatment
- Inundative releases of T. cacoeciaee2
- Outcome
- economic lossese2
- Direction
- not sufficient to limite2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the efficacy of the oophagous parasitoid Trichogramma cacoeciae against Ectomyelois ceratoniae on date palm trees”
e2“Inundative releases of T. cacoeciae in the two oases resulted in varying degrees of pest control and they were not sufficient to limit economic losses”