Climate Change Impacts on Outbreak of Brown
Plant Hopper in Vietnam and Options for
Prevention
PROJECT INFORMATION
Vietnamese project partners:
- Plant Protection Research Institute (PPRI).
- Plant Protection Department (PPD).
- Institute of Meteorology, Hydrology and Environment (IMHEN).
- Centre for Irrigation Technology Software at Institute for Water Resources Planning
(CITS).
Danish project partner: Department of Agroecology, Aarhus University (AU).
Japanese collaborator: National Institute of Agrobiological Sciences (NIAS).
Start Date: June 1, 2014
End Date: March 31, 2017
BACKGROUND AND HYPOTHESIS
Background:
- Vietnam is considered one of the countries most vulnerable to climate change.
- Agriculture depends on the climate (growing conditions, crops, cultivars, cultivation
practices and biological interactions within the agro-ecosystem).
- New insect pests and plant diseases have shown up, more frequent large-scale
epidemics have been observed. These may relative with climate change.
- Rice is the most important crops in Vietnam and the main reason of rice production lost
is outbreak of Brown Planthopper.
- We hypothesize that climate change is one of the factors likely to cause BPH outbreaks.
THE OBJECTIVE OF PROJECT
Overall objective
To assess the impact of climate change on the outbreak potential of Brown Planthopper
(Niloparvata lugen Stål) in Vietnam and propose policies and strategies for prevention.
Immediate objectives
1. To estimate BPH life history parameters (development rate, survival, fecundity) as
determined by climatic parameters (temperature, air humidity, CO2) in combination with
cultivation parameters (rice cultivar, insecticide type and dosage, soil nutrient level).
2. To establish a BPH trapping network at six stations from north to south in Vietnam and
thereby analyse the migration patterns of BPH, including BPH genetic markers.
3. To develop a mathematical model to predict outbreaks of BPH in Vietnam based on BPH
life history parameters, BPH insecticide resistance and biotype virulence genes, climate
and cultivation practices.
THE OBJECTIVE OF PROJECT
4. To describe the BPH molecular basis of insecticide resistance and BPH virulence
biotypes.
5. To develop policies and strategies that will prevent BPH outbreaks in Vietnam based on
simulation scenarios incorporating climate change and cultivation parameters (rice
cultivar, insecticide type and dosage, soil nutrient level).
6. To disseminate information on policies and strategies that will prevent BPH outbreaks in
Vietnam
7. To enhance the research capacity of Vietnamese institutions with regards to ecological
modelling and molecular tools for integrated pest management.
MAIN RESULTS AND OUTCOME OF PROJECT
Main results:
- Establishment of equipments for research.
Insect rearing chamber with adjustment of (T, RH%, CO2)
MAIN RESULTS AND OUTCOME OF PROJECT
BPH trap in Phu Yen Province
MAIN RESULTS AND OUTCOME OF PROJECT
GIS system for inputing data of survey
MAIN RESULTS AND OUTCOME OF PROJECT
Insect rearing room for testing insecticide resistance
MAIN RESULTS AND OUTCOME OF PROJECT
Laboratory of molecular biology
MAIN RESULTS AND OUTCOME OF PROJECT
Main results:
- Data of controlled-conditions experiments in insect rearing chamber (experimental units,
treatment factors, treatment levels, combinations, samples, measurement variables,
replication) have been conducted at PPRI.
- Historical data of BPH population dynamic in field of North, Center and South regions,
during 2003 – 2013, has collected and put in WebGIS.
- Data of BPH population dynamic in field at North, Center and South, in 2014, 2015 and
2016 have been collecting and putting on WebGIS.
- Twenty BPH strains from all regions of Vietnam were collected and tested insecticide
resistance by leaf dip method.
- Three BPH strains were reared for mass production to analyze in level of molecular
biology.
MAIN RESULTS AND OUTCOME OF PROJECT
Main results:
- Two PhD students engaged, under co-supervisors of Vietnamese and Danish, are
studying at Vietnam Academy of Agricultural Science (VAAS);
- PhD students have been visiting Denmark from 15 April – 15 July – 2016;
- Two researchers visited Denmark from 15-23 April – 2016.
MAIN RESULTS AND OUTCOME OF PROJECT
Main results:
- Collaboration with Danish researchers:
+ Ecological modelling and molecular biology;
+ Scientific visiting and PhD straining;
MAIN RESULTS AND OUTCOME OF PROJECT
Main results:
- Collaboration with Danish researchers:
+ Ecological modelling and molecular biology;
+ Scientific visiting and PhD straining;
MAIN RESULTS AND OUTCOME OF PROJECT
Main results:
- Collaboration with Japanese researchers:
+ National Institute for Agrobiological Science (NIAS), Insect Division, Insect-Plant
Interaction Research Unit, provides information of DNA markers for identification of
insecticide resistance, biotype and scientific visiting.
MAIN RESULTS AND OUTCOME OF PROJECT
Main results:
- Collaboration with Vietnamese researchers:
+ IMHEN supports data of meteorology, climatology and climate change scenarios for
research regions.
+ CIST constructed WebGIS and analyzed the data for input and output data of BPH
population dynamic.
MAIN RESULTS AND OUTCOME OF PROJECT
Main results:
+ PPD has provided data on agricultural practices (insecticide use, rice varieties cultivated)
and help disseminating project results to farmers.
Ministry of Agriculture and
Rural Development
(MARD)
Plant Protection
Research Institute
(PPRI)
Plant Protection
Department
(PPD)
Province
sub-department
(sub-PPD)
District Plant Protection
Station
(PPS)
Commune
extensionist
Farmer
MAIN RESULTS AND OUTCOME OF PROJECT
Outcome:
- Data set of climate impact on BPH population dynamic in laboratory and field is analyzing
and first draft scientific paper is writing.
- Data set of insecticide resistance in Vietnam is analyzing and the second draft paper is
writing.
- Expression in molecular level of some insecticide resistance genes is analyzing and the
third draft paper will be published.
- New guideline for BPH management will be accepted and issued by MARD via PDD.
- Research capacity is enhanced in ecological modeling and molecular biology for PPRI.
- PPRI attracts more international collaboration and increase chance for getting research
funding.
THANK FOR YOUR ATTENTION