Abstract
During our March 2002 mission funded by the French Ministry of Foreign Affairs, we have: 1) Identified the pest responsible for coconut decay in Baucau: the scale insect Aspidiotus destructor. 2) Proposed a biological control method consisting in importing a species of predatory ladybird, to rear it locally in Baucau and release it in infested coconut plantations. In July 2003, after CIRAD contacts with the Indonesian University of Gadjah Mada in Yogyakarta (Dr. Andi Trisyono), two Timorese representatives from MAFF took a course at the entomology faculty of that university. They selected a local species of ladybird, Chilocorus politus, known for its effectiveness against A. destructor, and were trained in rearing techniques. In September 2003, 46 C. politus adults were imported from Yogyakarta to Timor-Leste, 38 of which arrived in good condition at the Triloka laboratory near Baucau. Our December 2003 mission, commissioned by the Timorese MAFF and funded by USAID / DAI in Dili, consisted in: 1) Checking that the Triloka laboratory complied with rearing standards. 2) Preparing ladybird releases. 3) Assessing the degree of damage caused by the pest in Baucau and checking for its possible presence in two coconut growing zones: Viqueque and Com. Regarding point 1), advice is given for: - Improving the building layout to create a stable microclimate appropriate for ladybird development. - Improving the production of A. destructor rearing media (pumpkins). - Organizing the different stages of C. politus rearing to avoid mixing the successive larval instars and generations. Regarding point 2), 8 release sites were chosen in Baucau, along with 4 control sites without releases. At each site made up of 10 coconut palms, pest population trends will be regularly monitored. Depending on ladybird production levels at the Triloka laboratory, the first releases are scheduled for April 2004, at the beginning of the dry season. Regarding point 3), we noted the considerable spread of the pest, and of palm deaths in and around the town of Baucau between March 2002 and December 2003. We also identified some A. destructor foci in Viqueque district, but no outbreaks for the moment. Lastly, we identified some A. destructor foci in the coastal villages between Baucau and Com. At the port of Com, a local species of ladybird, Pullus sp., was identified that is apparently a predator of A. destructor. Its efficacy should be tested at Triloka.
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Claims 10
Claim · model-written summary
The scale insect Aspidiotus destructor was identified as the pest responsible for coconut decay in Baucau.
- Taxon
- coconute1
- Interactor
- Aspidiotus destructor
Aspidiotus destructore1pest - Outcome
- coconut decaye1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Identified the pest responsible for coconut decay in Baucau: the scale insect Aspidiotus destructor”
Claim · model-written summary
Importing a predatory ladybird for local rearing and release in infested coconut plantations is proposed as a biological control method.
Verbatim
e2“Proposed a biological control method consisting in importing a species of predatory ladybird, to rear it locally in Baucau and release it in infested coconut plantations”
Claim · model-written summary
38 of 46 Chilocorus-type ladybird adults (C. politus) imported to Timor-Leste arrived in good condition at the Triloka laboratory near Baucau.
- Taxon
- Cocos nucifera
Cocos nuciferat0 - Interactor
- C. politusChilocorus polituse3biocontrol_agent
- Outcome
- arrived in good conditione3
- Value
- 38e3
- Setting
- Triloka laboratory near Baucaue3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aspidiotus destructor outbreaks on Cocos nucifera in Baucau district”
e3“In September 2003, 46 C. politus adults were imported from Yogyakarta to Timor-Leste, 38 of which arrived in good condition at the Triloka laboratory near Baucau”
Claim · model-written summary
Aspidiotus destructor spread considerably, with palm deaths, in and around the town of Baucau between March 2002 and December 2003.
- Taxon
- Cocos nuciferaCocos nuciferat0
- Interactor
- Aspidiotus destructorAspidiotus destructort0pest
- Outcome
- spread of the pest, and of palm deathse4
- Setting
- town of Baucaue4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aspidiotus destructor outbreaks on Cocos nucifera in Baucau district”
e4“we noted the considerable spread of the pest, and of palm deaths in and around the town of Baucau between March 2002 and December 2003”
Claim · model-written summary
Aspidiotus destructor foci were identified in Viqueque district, but no outbreaks at the time.
- Taxon
- Cocos nuciferaCocos nuciferat0
- Interactor
- A. destructorAspidiotus destructore5pest
- Outcome
- focie5
- Qualifier
- but no outbreaks for the momente5
- Setting
- Viqueque districte5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aspidiotus destructor outbreaks on Cocos nucifera in Baucau district”
e5“We also identified some A. destructor foci in Viqueque district, but no outbreaks for the moment”
Claim · model-written summary
Aspidiotus destructor foci were identified in the coastal villages between Baucau and Com.
- Taxon
- Cocos nuciferaCocos nuciferat0
- Interactor
- A. destructorAspidiotus destructore6pest
- Outcome
- focie6
- Setting
- coastal villages between Baucau and Come6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aspidiotus destructor outbreaks on Cocos nucifera in Baucau district”
e6“Lastly, we identified some A. destructor foci in the coastal villages between Baucau and Com”
Claim · model-written summary
Pullus sp., a local ladybird at the port of Com, is apparently a predator of Aspidiotus destructor.
- Taxon
- Cocos nuciferaCocos nuciferat0
- Interactor
- A. destructorAspidiotus destructore7pest
- Second interactor
- Pullus sp.e7biocontrol_agent
- Outcome
- predator of A. destructore7
- Setting
- port of Come7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aspidiotus destructor outbreaks on Cocos nucifera in Baucau district”
e7“At the port of Com, a local species of ladybird, Pullus sp., was identified that is apparently a predator of A. destructor”
Claim · model-written summary
Building layout should be improved to create a stable microclimate for ladybird development at the Triloka rearing laboratory.
- Taxon
- Cocos nuciferaCocos nuciferat0
- Interactor
- ladybirde1biocontrol_agent
- Outcome
- building layoute1
- Qualifier
- to create a stable microclimate appropriate for ladybird developmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aspidiotus destructor outbreaks on Cocos nucifera in Baucau district”
e1“Improving the building layout to create a stable microclimate appropriate for ladybird development”
Claim · model-written summary
Production of Aspidiotus destructor rearing media on pumpkins should be improved.
- Taxon
- Cocos nuciferaCocos nuciferat0
- Interactor
- A. destructorAspidiotus destructore2pest
- Outcome
- production of A. destructor rearing mediae2
- Qualifier
- pumpkinse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aspidiotus destructor outbreaks on Cocos nucifera in Baucau district”
e2“Improving the production of A. destructor rearing media (pumpkins)”
Claim · model-written summary
Different stages of C. politus rearing should be organised to avoid mixing successive larval instars and generations.
- Taxon
- Cocos nuciferaCocos nuciferat0
- Interactor
- C. politusChilocorus polituse3biocontrol_agent
- Outcome
- Organizing the different stages of C. politus rearinge3
- Qualifier
- to avoid mixing the successive larval instars and generationse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aspidiotus destructor outbreaks on Cocos nucifera in Baucau district”
e3“Organizing the different stages of C. politus rearing to avoid mixing the successive larval instars and generations”