ecologically-based participatory ipm for southeast asia
DESCRIPTION
Ecologically-Based Participatory IPM for Southeast Asia. Philippine Site ( PhilRice ) HRapusas , GS Arida , SSantiago , BPunzal and J Ramos. Title of Study: Management of the common cutworm, Spodoptera litura with Sex pheromone and NPV. Objective of the Study - PowerPoint PPT PresentationTRANSCRIPT
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Ecologically-Based Participatory IPM for Southeast Asia
Philippine Site(PhilRice)
HRapusas, GS Arida, SSantiago, BPunzal and J Ramos
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Title of Study: Management of the common cutworm, Spodoptera litura with Sex pheromone and NPV
Objective of the StudyTo develop a management strategy for Spodoptera litura in onion with sex pheromones for effective timing of interventions using NPV.
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Materials and MethodTwo farmers’ fields in Sto. Domingo and Guimba, Nueva Ecija. In each field, two water-oil sex pheromone baited traps were installed2 weeks after transplanting. Trap catches were recorded 3 times a week and traps were cleaned whenever necessary. The synthetic pheromones were replaced after 30 days.Number of larvae and percentage damage leaves were monitored every week on 20 randomly selected plants per plot. Yield was recorded in 1sq.m. per plot.
Treatments:T1- Farmers practiceT2- Spray NPV at 5 and 7 days after peak in trap catchesT3- Spray NPV at 7 and 9 days after peak in trap catchesT4- Spray NPV every week from 14 days after transplantingEach plot measures 4x5m, replicated four times in a randomized complete block design.
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23 26 28 30 33 35 37 40 42 44 47 49 51 54 56 58 61 63 65 68 70 720
20
40
60
80
100
Crop Age (DAT)
Num
ber o
f Mal
e Mo
th C
atch
es
Catches of male S. litura moths recorded in sex pheromone baited traps. Sto. Domingo, Nueva Ecija. 2012 Onion season.
16 21 26 30 35 40 44 49 54 58 63 68 72 77 820
50
100
150
200
250
300
Crop Age (DAT)
Num
ber o
f Mal
e Mo
th C
atch
es
Catches of male S. litura moths recorded in sex pheromone baited traps. Guimba, Nueva Ecija. 2012 Onion season.
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28 35 42 49 56 63 700.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0T1 T2 T3 T4
Crop Age (DAT)
Dam
age
leave
s (%
)
Percentage of damage leaves due to S. litura recorded at diferent crop ages. Sto. Domingo, Nueva Ecija. 2012 Onion season.
21 28 35 42 49 56 63 680
1
2
3
4
5
6
7T1 T2 T3 T4
Crop Age (DAT)
Dam
age
leave
s (%
)
Percentage of damage leaves due to S. litura recorded at diferent crop ages. Guimba, Nueva Ecija. 2012 Onion season.
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T1 T2 T3 T40.00.51.01.52.02.53.03.54.04.55.0
Treatment
Yie
ld (k
g/sq
.m)
Yield of onion recorded from different treatments. Sto. Domingo, Nueva Ecija. 2012 Onion season.
T1 T2 T3 T40.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Treatment
Yie
ld (k
g/sq
.m)
Yield of onion recorded from different treatments. Guimba, Nueva Ecija. 2012 Onion season.
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Title of study: Effect of rice straw mulch on the population of weeds and natural enemies of insect pests of onion
ObjectiveTo determine the impact of rice straw mulch on weed and population of beneficial organisms in onion.
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20 22 26 29 32 34 36 40 48 53 57 69 71 74 76 810
2
4
6
8
10
12
14
16
18Rice straw mulchNo rice straw mulch
Crop age (DAT)
Pest
s (no
.)
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20 22 26 29 32 34 36 40 48 53 57 69 71 74 76 810
2
4
6
8
10
12
14 Rice straw mulchNo rice straw mulch
Crop age (DAT)
Nat
ural
ene
mie
s (n
o.)
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20 22 26 29 32 34 36 40 48 53 57 69 71 74 76 810
500
1000
1500
2000
2500
3000
(Collembolan and Dipterans)
Rice straw mulch No rice straw mulch
Crop stage (DAT)
Arth
ropo
ds (N
o.)
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Title of the Study: Effect of Pre- harvest Application of VAM and Trichodermasp. (CRSP isolate) on the Shelf Life of Onion
Objective
To evaluate the effect of using VAM and Trichoderma sp. (CRSP isolate) on the shelf life of bulb onion.
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Research MethodsSite of the study: Guimba, NuevaEcija. Onion variety used was Red Pinoy.
Treatments : T1-VAM + Trichodermasp. at transplanting T2-farmers’ practice ( No VAM, No Trichoderma sp)
All treatments were treated with the same practices for insect pests and weed management. Disease incidence, disease severity and yield were collected. After harvesting leaves were trimmed at 2 inches above the bulb. Onion bulbs were allowed to cure for a month in a ventilated area. After curing, bulbs were placed in mesh bags with a capacity of 5kg/bag and were stored at room temperature (270 C). Weight loss and occurrence of bulb rot disease were observed and recorded bi-weekly for four months.
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30 50 60 65 75012345678
VAM + Trichoderma Farmers' Practice
Inci
denc
e (%
)
Crop Age (DAT)
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30 50 60 65 75012345678
VAM + Trichoderma Farmers' PracticeD
isea
se se
verit
y (%
)
Crop Age (DAT)
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VAM + Trichoderma Farmers' Practice10
15
20
25
30
35
40Y
ield
(t/ h
a)
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VAM + Trichoderma Farmers' Practice0
5
10
15
20
25
30
35
40Weight loss Bulb rot
Perc
ent (
%)
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Development of Alternative Storage Techniques to Prolong Storage Shelf Life of Onion
Objective
To develop storage techniques to reduce postharvest losses due to diseases and prolong bulb storage.
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Research Methods
Site: Bunol, Guimba, Nueva Ecija. Red Pinoy onion variety was used in this study. Samples were harvested from the plots treated with VAM + Trichoderma sp. before transplanting (IPM plot) and from the farmers’ practice plots. After harvesting at 90 DAT, the leaves were trimmed to 2 inches above the bulbs and allowed to cure for 2 weeks in a ventilated area. After curing and treatment application, onion bulbs were placed in mesh bags with a capacity of 5kg/bag and were stored at room temperature (27OC ).
Treatments: T1 - Onion dusted with Trichoderma sp. + Carbaryl T2 - Onion dusted with Mancozeb + Carbaryl T3 - Onion dusted withCarbaryl alone
Percentage of weight loss and bulb rots was taken and recorded bi-weekly for four months.
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Trichoderma sp + Carbaryl
Mancozeb + Carbaryl Carbaryl alone0
10
20
30
40
50
60Weight loss Bulb rot
Perc
ent (
%)
Treatment
IPM Plot
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Trichoderma sp + Carbaryl
Mancozeb + Carbaryl Carbaryl alone0
10
20
30
40
50
60Weight loss Bulb rot
Perc
ent
(%)
Treatment
Farmers’ practice
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Work Plan- Year 4
Objective 1: To develop IPM knowledge with smallholder farmers producing vegetables and selected high value crops.
Activity 1. Promotion of IPM technologies for the management of insect pests in rice-based vegetables.
Crops: onion, garlic, eggplant, tomato, pepper, okra, bitter gourd, melon
Sites: Nueva Ecija, Pangasinan, Ilocus Sur, I. Norte (Luzon), South Cotabato, Davao (Mindanao)
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Technologies1. Yellow sticky board traps for leaf miner2. Blue sticky traps for thrips3. NPV for cutworm and armyworm4. Paecilomyces spp. for whiteflies5. Metarhizium and Beauveria species for whiteflies and other
pests6. Weekly removal of damaged fruits and shoots for eggplant
fruit shoot and fruit borer7. Field sanitation
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Activity 2. Promotion and utilization of IPM technologies for soil-borne diseases
Crops: onion, garlic, eggplant, tomato, pepper, okra, bitter gourd, melonSites: Nueva Ecija, Pangasinan, Ilocos Sur, I. Norte (Luzon), South Cotabato, Davao (Mindanao)
Technologies1. Vesicular arbuscular mychorrhiza (VAM) at seed sowing and
transplanting2. Trichoderma sp. (IPM CRSP isolate)3. Bacillus spp. and other indigenous soil microorganisms4. Field sanitation
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Activity 3. Rice straw and stale seedbed techniques to reduce weeds and provide refuge for predatorsCrop: OnionSites: Guimba, Nueva EcijaTechnology: Mulching with rice straw
Activity 4. Sex pheromones and NPV for the management of cutworm, Spodptera litura in onion.Crop: OnionSites: Guimba and Talavera, Nueva EcijaTechnologies: Sex pheromone and NPV
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Objective 2. To improve the IPM communication and education leading to widespread adaptation, and impact approaches in Southeast Asia and Objective 3. To enhance the capability of smallholder farmers to produce and market high quality products for local, national and international markets.
Activity 1. Dissemination of Pest Management Technologies in Rice-vegetable Cropping system
1. Development of information and extension materials2. Short trainings, technical briefings, establishment of demo plots3. Season-long farmers field schools (FFS)4. Farmer educational tours5. Farmers field days
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Activity 2. Village level production, integration, and utilization and adoption of technologies involving microbial agents such as VAM, NPV. Trichoderma sp. and fungal pathogens for whiteflies and thrips in rice-vegetable cropping system
1. Survey, isolation and culture of fungal pathogens of whiteflies and thrips
2. Village level farmers training on mass production of microbial materials
3. Village level production of BCAs4. Campaign for utilization and implementation5. Production and distribution of campaign/extension
materials for biological control agents
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Activity 3. Development of a Vegetable Disease Diagnostic Kit (VDDK) for farmers
1. VDDK is in its final draft2. Pre-testing of the kit- evaluation of farmers and extension
workers3. Modification of the kit based on the evaluation of users4. Mass production of the diagnostic kit
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Thank You