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Rice Insect Pest Management by Ecological
Engineering in Farmers’ Fields in Nueva Ecija,
Philippines
GS Arida, LV Marquez, BS Punzal and J Settele
LEGATO Conference, Banaue, Philippines August 5-11, 2016
0
10
20
30
40
50
60
70
80
0 1 2 3 4 5 6 7
Fa
rme
rs (
%)
FREQUENCY OF INSECTICIDE SPRAY
CAR I II III IVA
IVB V VI VII VIII
IX X XII XIII ARMM
Frequency of insecticide application of rice farmers in the
Philippines. 2015 Wet season and 2016 Dry.
Location of Study
Farmers’ field in Munoz and Sto. Domingo, Nueva
Ecija during the wet season of 2015 and dry season of
2016. Two fields in each site were selected, one close
to flowering plants and the other without flowering plants.
Title of Study: Rice Insect Pest Management by Ecological
Engineering in Farmers’ Fields in Nueva Ecija, Philippines
Plant Nursery
Sto. Domingo, Nueva Ecija
With Flowering Plants No Flowering Plants
•Blower vac-suction and sweep net
were used for sampling arthropods. Ten
samples were collected by blow-vac
suction machine and ten sweeps using
sweep net along a diagonal line per
field replicated 4 times per field during
tillering, maximum tillering and booting stages.
Yellow sticky traps were installed at 30,
45 and 60 DAT and collected 3 days
after installation. Four traps were installed per field.
All the arthropods collected in the blow-vac suction
machine, sweep net and sticky traps were identified and counted in the laboratory.
Damage due to defoliators was recorded at 60 day
safter transplanting in 10 randomly selected hills and replicated 4 times.
Rice leaffolder
Deadheart
Whitehead
Stem borer damage (whitehead) was
recorded in 10 randomly selected hills replicated 4 times at one week before harvest.
0
100
200
300
400
500
He
rbiv
ore
s
Pre
da
tors
Pa
rasi
toid
s
He
rbiv
ore
s
Pre
da
tors
Pa
rasi
toid
s
He
rbiv
ore
s
Pre
da
tors
Pa
rasi
toid
s
Tillering Max. tillering Booting
Art
hro
po
ds
co
llec
ted
(N
o)
Crop Growth Stage
With FP Without FP
Population of important arthropod functional groups in fields
with and without flowering plants (FP). Munoz, Nueva Ecija. 2015 Wet season.
Population of important arthropod groups in fields with
and without flowering plants (FP).Sto. Domingo, Nueva Ecija. 2015 Wet season.
0
100
200
300
400
500
He
rbiv
ore
s
Pre
da
tors
Pa
rasi
toid
s
He
rbiv
ore
s
Pre
da
tors
Pa
rasi
toid
s
He
rbvvo
res
Pre
da
tors
Pa
rasi
toid
s
Tillering Max. Tillering Booting
Art
hro
po
ds
co
llec
ted
(N
o)
Crop Growth Stage
With FP Without FP
1,0
6,0
0,0
1,0
2,0
3,0
4,0
5,0
6,0
7,0
8,0
With FP Without FP
Wh
ote
he
ad
(%
)
TREATMENT
Damage (mean ±SE) due to stem borer one week
before harvest rice field with and without lowering
plants. Sto. Domingo, Nueva Ecija. 2015 Wet
season
3,80
8,60
0
2
4
6
8
10
12
With FP Without FP
Da
ma
ge
d le
av
es
(%)
TREATMENT
Damage (mean ±SE) due to defoliators at
vegetative stage in rice fields with and without
lowering plants. Munoz, Nueva Ecija. 2015Wet season
3,00
6,30
0,00
1,00
2,00
3,00
4,00
5,00
6,00
7,00
8,00
9,00
10,00
With FP Without FP
Wh
ite
he
ad
(%
)
TREATMENT
Damage (mean ±SE) due to stem borer one week
before harvest in fields with and without lowering
plants. Munoz, Nueva Ecija. 2015 Wet season.
3,80
8,60
0
2
4
6
8
10
12
With FP Without FP
Da
ma
ge
d le
ave
s (%
)
TREATMENT
Damage (mean ±SE) due to defoliators at vegetative
stage in rice fields with and without lowering plants. Munoz, Nueva Ecija. 2015 Wet season.
0
10
20
30
40
50
60
70
Tillering Max.tillering Booting
Pa
rasi
toid
s (N
o/t
rap
)
Crop growth stage
With FP Without FP
Number of parasitoids recorded at different
crop growth stages in fields with and without
flowering plants (FP). Munoz, Nueva Ecija. 2015 Wet season.
0
10
20
30
40
50
60
70
Tillering Max. tillering Booting
Pa
rasi
toid
s (N
o/t
rap
)
Crop growth stage
With FP Without FP
Number of parasitoids recorded at different
crop growth stages in fields with and
without flowering plants (FP). Sto. Domingo, Nueva Ecija. 2015 Wet season.
0,0
1,0
2,0
3,0
4,0
5,0
6,0
7,0
8,0
9,0
10,0
With FP Without FP
Da
ma
ge
d le
ave
s (%
)
TREATMENT
Damage (mean ±SE) due to defoliators
during the vegetative stage in rice field
with and without lowering plants. Munoz,
Nueva Ecija. 2016 Dry season.
0,0
1,0
2,0
3,0
4,0
5,0
6,0
7,0
8,0
9,0
10,0
With FP Without FP
Wh
ite
he
ad
(%
) TREATMENT
Damage (mean ±SE) due to stem borer one week
before harvest in rice field with and without
lowering plants. Munoz, Nueva Ecija. 2016 Dry
season.
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
With FP Without FP
Wh
ite
he
ad
(%
)
TREATMENT
Damage (mean ±SE) due to stem borer one week
before harvest in rice fields with and without
lowering plants. Sto. Domingo, Nueva Ecija. 2016
Dry season.
0,0
1,0
2,0
3,0
4,0
5,0
6,0
7,0
8,0
9,0
10,0
With FP Without FPD
am
ag
ed
le
ave
s (%
)
TREATMENT
Damage (mean ±SE) due to defoliators during the
vegetative stage in rice fields with and without lowering
plants. Sto. Domingo, Nueva Ecija. 2016 Dry season.
0
5
10
15
20
25
30
35
40
With FP Without FP With FP Without FP
45 60
Pa
rasi
toid
(N
o/t
rap
)
Crop age (DT)
Anagrus Gonatocerus
Number of rice plant and leafhopper parasitoids
recorded in yellow sticky traps in fields with and
without flowering plants. Munoz, Nueva Ecija. 2016 Dry
season.
0
5
10
15
20
25
30
35
40
With FP Without FP With FP Without FP
45 60P
ara
sito
ids
(No
./tr
ap
)
Crop age (DT)
Anagrus Gonatocerus
Number of rice plant and leafhopper parasitoids
recorded in yellow sticky traps in fields with and
without flowering plants. Sto. Domingo, Nueva
Ecija. 2016 Dry season.
Results indicated that ecological engineering offers immense opportunities to rice insect pest management
using non-chemical methods leading to economic,
health and environmental benefits.
This practice increased biodiversity in the ecosystem,
significantly increased biological control of rice pests,
provided stability in the ecosystem, lower incidence of
damage caused by defoliators and rice stem borer in the rice fields and in effect with low vulnerability for pest
outbreaks.
Ecological engineering (EE) will compliment
Integrated Pest management (IPM) programs
currently implemented in tropical rice by
improving the efficacy of beneficial organisms
to reduce reliance on pesticides.
In addition, EE will address our concern on
production cost, health and safety of farmers
and consumers, the environment, and
ecological stability and sustainability.
Field Days at the Central Experiment
Station and PhilRice Branch Stations and
Lectures in 2015
Re-tooling of extension workers in several provinces through the
Agricultural Training Institute (ATI) and the Regional Crop Protection
Center (RCPC) of the Department of Agriculture (DA)
National Training and Assessment of Crop Health October 19-22,
2015 Delivered Lecture on Ecological Engineering Approach for Pest
management attended by participants from DA-RFO from Regions
1-13, Cordillera Autonomous Region (CAR), and Autonomous
Region of Muslim Mindanao (ARMM) – Diversion 21 Hotel, Iloilo City.
Lecture on Ecological Engineering Approach for Pest
management September 7, 2015 Pioneer seeds Company
Lectures delivered on Ecological Engineering
Approach for Pest Management (Wet season, 2015)
Updates on Rice Pest Surveillance Orchid Hotel, Manila
Attended by the Regional Crop Protection Center Staff (all regions)
of the Department of Agriculture. September 23-25, 2015-
Five day Specialized Training Course and Symposium of Regional,
Provincial, Municipal Crop Protection Officers/IPM Coordinators.
November 04, 2015 (Tarlac province)
November 11, 2015 (Bulacan province
November 18, 2015 (Nueva Ecija province)
November 25, 2015 (Pampanga and Zambales)
December 02, 2015(Bataan province)
RCPC III Auditorium, Maligaya, Munoz, Nueva Ecija
Farmer Field School (FFS) and Techno Demo Coordinators
Congress (November 26-27, 2015) Hotel Stotsenberg, Clarkfield,
Pampanga
Thank you
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