1. POSITIVE PRODUCTS FOR CONTROL OF INSECT PESTS , DISEASES AND WEEDS IN RICE (Dr RK Wanjogu and CM Kambo) Presentation during the NIB / Collaborators research findings Workshop, Kenya School of Monetary Studies, 3rd to 4th July, 2014.

2. Introduction
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

3. PADDY FIELD

4. To evaluate the efficacy of 6 selected Insecticides against rice pests
Objectives
To 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

5. Justification 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

6. Materials 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

7. Cypermethrin +Chlorpyrifos
Example: East trap 4G
Chemical name
Active Ingredient (a.i.)
Rate of Application per Ha
East trap 4G
Cartap Hydrochloride
10 kg
15 kg
20 kg
Cyclone 505 EC
Cypermethrin +Chlorpyrifos
1 L
Untreated control
Nil

8. Efficacy of East trap 4G against Rice pests
Treatment
Rate per ha
Root borer
Shoot borer
Leaf folder
Gall midge
Untreated control
0 kg
1.79a (2.70)
0.84a (0.21)
0.97a (0.44)
0.79a (0.12)
East trap 4G
10 kg
1.73ab (2.49)
0.82ab (0.17)
0.96ab (0.42)
0.77ab (0.09)
15 kg
1.76ab (2.60)
0.75ab (0.06)
0.76ab (0.08)
20 kg
1.74ab (2.53)
0.71b (0.00)
0.75b (0.06)
Cyclone 505 EC
1 L
1.66b (2.26)
0.81ab (0.16
0.93b (0.36)
LSD (p=0.05) -
0.13
0.04
p-value (0.05)
0.325
0.159
0.173
0.164
CV (%)
6.05
8.12
9.76
11.65

9. Recommendation
East 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 kg ha-1 may be recommended for the control of shoot borers, root borers, leaf folders and gall midges in rice fields.

10. RICE STEM BORER

11. Cyperus difformis-weed

12. Monocharia vaginalis-weed

13. REPORTS SUBMITTED TO PCPB
PRODUCT
CLASS
COMPANY
SEASONS
Engeo 247 SC
Insecticide
Syngenta 1
East trap 4G
East African Business Co. Ltd. 2
Ochestra 50 EC
Dipchem EA Ltd.
Steward 0.3% GR
Greenlife Crop protection Africa Ltd.
Agromine 860 SL
Herbicide
Flair 50 EC
Witness 52.5% WP
Fungicide
Amistar Top
Sacrifido 125 EC

14. EFFICACY TRIAL IN PROGRESS
PRODUCT
CLASS
COMPANY
SEASONS
Spectator Gold 50% EC
Insecticide
Greenlife Crop Protection Limited 1
Epitome elite 500 SP
East African Business
Exempo curve 250 SC
Fungicide
Greenlife Crop protection Africa LTD
Defacto 500 EC
Dipchem
Breakdown 450 EC
Herbicide
Greenlife

15. Acknowledgement Director, KARI Managing Director-NIB NIB – MIAD staff
Centre Director, KARI Mwea

16. Thank You
BUTTERLIES