POSITIVE PRODUCTS FOR CONTROL OF INSECT PESTS, DISEASES AND WEEDS IN RICE ) Presentation during the...
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Transcript of POSITIVE PRODUCTS FOR CONTROL OF INSECT PESTS, DISEASES AND WEEDS IN RICE ) Presentation during the...
POSITIVE PRODUCTS FOR CONTROL OF INSECT POSITIVE PRODUCTS FOR CONTROL OF INSECT PESTS , DISEASES AND WEEDS IN RICEPESTS , DISEASES AND WEEDS IN RICE
(Dr RK Wanjogu and CM Kambo) ) Presentation during the NIB / Collaborators Presentation during the NIB / Collaborators
research findings Workshop, Kenya School of research findings Workshop, Kenya School of Monetary Studies, 3Monetary Studies, 3rdrd to 4 to 4thth July, 2014. July, 2014.
IntroductionIntroduction
Rice (Oryzae sativa) is the third most important food crop in Kenya after maize and wheat
National rice consumption is estimated at 400,000 metric tonnes
Annual production range of 45,000 to 80,000 metric tonnes
Low production is caused mainly by poor natural resource management
And continuous monoculture leading to accumulation of, weeds, diseases and insect pests
ObjectivesObjectivesTo evaluate the efficacy of 6 selected Insecticides against rice pests
To evaluate the efficacy of 4 selected Fungicides against weeds paddy fields
To evaluate the efficacy of 5 selected Herbicides against weeds paddy fields
JustificationJustification
Target pests: Insect pests, diseases and weeds
If uncontrolled, may cause upto 100% yield losses
Evaluation of pest control products should be a continuous processes
For effective pesticide resistance management insecticide screening is necessary
Materials and methodsMaterials and methods
Field experiments : Conducted at MIAD Research Centre between 2012 and 2014
Rice variety, Basmati 370 was planted at a spacing of 15 cm x20 cm
Plot size – 5m by 1 m : In RCBD with 4 replicates
Treatments: 5 including, Local check & untreated control
Example: East trap 4GExample: East trap 4G
Chemical
name
Active Ingredient
(a.i.)
Rate of
Application
per Ha
East trap 4G Cartap Hydrochloride 10 kg
East trap 4G Cartap Hydrochloride 15 kg
East trap 4G Cartap Hydrochloride 20 kg
Cyclone 505 EC Cypermethrin +Chlorpyrifos 1 L
Untreated
controlNil Nil
Efficacy of East trap 4G against Rice pests
TreatmentRate per
ha
Root
borer
Shoot
borer
Leaf
folder
Gall
midge
Untreated
control0 kg
1.79a
(2.70)
0.84a
(0.21)
0.97a
(0.44)
0.79a
(0.12)
East trap 4G 10 kg1.73ab
(2.49)
0.82ab
(0.17)
0.96ab
(0.42)
0.77ab
(0.09)
East trap 4G 15 kg1.76ab
(2.60)
0.75ab
(0.06)
0.96ab
(0.42)
0.76ab
(0.08)
East trap 4G 20 kg1.74ab
(2.53)
0.71b
(0.00)
0.96ab
(0.42)
0.75b
(0.06)
Cyclone 505
EC1 L
1.66b
(2.26)
0.81ab
(0.16
0.93b
(0.36)
0.79a
(0.12)
LSD
(p=0.05)- 0.13 0.13 0.04 0.04
p-value
(0.05)- 0.325 0.159 0.173 0.164
CV (%) - 6.05 8.12 9.76 11.65
RecommendationRecommendationEast trap 4G at the rate of 15 kg to 20 kg per hectare effectively controlled the shoot borers, root borers, leaf folders and gall midges in rice fields.
In addition, significantly more tillers were recorded in plots treated with East trap 4G at 20 kg ha-1 and Cyclone 505 EC 1.0 L ha-1 (Local check) as compared to the untreated control plots
East trap 4G at 20 kg ha-1 recorded significantly taller plants as compared to the local check and untreated control plots
Two season results: East trap4G at 15-20 kg ha-1 may be recommended for the control of shoot borers, root borers, leaf folders and gall midges in rice fields.
REPORTS SUBMITTED TO PCPBREPORTS SUBMITTED TO PCPB
PRODUCT CLASS COMPANY SEASONS
Engeo 247 SC Insecticide Syngenta 1
East trap 4G Insecticide East African Business Co. Ltd. 2
Ochestra 50 EC Insecticide Dipchem EA Ltd. 1
Steward 0.3% GR InsecticideGreenlife Crop protection Africa
Ltd.2
Agromine 860 SL HerbicideGreenlife Crop protection Africa
Ltd.2
Flair 50 EC Herbicide East African Business Co. Ltd. 2
Witness 52.5% WP FungicideDipchem EA Ltd.
1
Amistar Top Fungicide Dipchem EA Ltd.
1
Sacrifido 125 EC Fungicide Dipchem EA Ltd.
1
EFFICACY TRIAL IN PROGRESSEFFICACY TRIAL IN PROGRESS
PRODUCT CLASS COMPANY SEASONS
Spectator Gold 50%
EC Insecticide
Greenlife Crop
Protection Limited 1
Epitome elite 500 SPInsecticide East African Business 1
Exempo curve 250 SC FungicideGreenlife Crop
protection Africa LTD 1
Defacto 500 EC Fungicide Dipchem 1
Breakdown 450 EC Herbicide Greenlife 1
AcknowledgementAcknowledgement
Director, KARI
Managing Director-NIB
NIB – MIAD staff
Centre Director, KARI Mwea