Lecture 29: IPM (Integrated Pest Management) for Rice
1. Avoid use of excess nitrogenous fertilizer which induces BPH and leaf folder
2. Remove/destroy stubbles after harvest
3. Trim field bunds and keep field free from weeds
4. Control irrigation by intermittent draining to manage BPH (Alternate wetting and
drying of field)
5. Avoid close planting, especially in BPH and leaf folder prone areas/seasons
6. Provide rogue spacing of 30 cm at every 2.5 m interval to take up plant protection
operation
7. Use light traps to monitor incidence of pests
8. Avoid resurgence inducing chemicals against BPH like Methyl parathion and
quinalphos
9. Remove stem borer egg masses by dipping off tip of rice seedling during
transplanting
10. Select and use resistant varieties against major pests
11. Manage caseworm by passing rope on crop and draining water
12. Release egg parasitoid Trichogramma japonicum on 30 and 37th day after planting
against stem borer
13. Release egg parasitoid T. chilonis and bacteria Bacillus thuringiensis against leaf
folder
14. Use of Neem Seed Kernel Extract 5% (NSKE 5%) or Neem oil 2% against
Earhead bug
15. Use insecticides as need based application if pest reaches ETL
S.No. Pest (on rice) ETL
1. Thrips 25/5 passes of wet palm
2. Stem borer 10% Dead heart or 2% white ear
3. Gall midge 10% Silver shoot
4. Leaf folder 10% leaf damage (at vegetative stage)
5% leaf damage (at Bootleaf stage)
5. GLH 5/hill at vegetative stage, 10/hill flowering stage, 2/hill in
RTV endemic areas
6. BPH (Brown 1/tiller; 2/tiller when spider present at 1/hill
Plant Hopper)
7. Earhead bug 5 bugs/100 panicle - Flowering stage
16 bugs/100 panicle - Milky stage
1. Avoid use of excess nitrogenous fertilizer which induces BPH and leaf folder
2. Remove/destroy stubbles after harvest
3. Trim field bunds and keep field free from weeds
4. Control irrigation by intermittent draining to manage BPH (Alternate wetting and
drying of field)
5. Avoid close planting, especially in BPH and leaf folder prone areas/seasons
6. Provide rogue spacing of 30 cm at every 2.5 m interval to take up plant protection
operation
7. Use light traps to monitor incidence of pests
8. Avoid resurgence inducing chemicals against BPH like Methyl parathion and
quinalphos
9. Remove stem borer egg masses by dipping off tip of rice seedling during
transplanting
10. Select and use resistant varieties against major pests
11. Manage caseworm by passing rope on crop and draining water
12. Release egg parasitoid Trichogramma japonicum on 30 and 37th day after planting
against stem borer
13. Release egg parasitoid T. chilonis and bacteria Bacillus thuringiensis against leaf
folder
14. Use of Neem Seed Kernel Extract 5% (NSKE 5%) or Neem oil 2% against
Earhead bug
15. Use insecticides as need based application if pest reaches ETL
S.No. Pest (on rice) ETL
1. Thrips 25/5 passes of wet palm
2. Stem borer 10% Dead heart or 2% white ear
3. Gall midge 10% Silver shoot
4. Leaf folder 10% leaf damage (at vegetative stage)
5% leaf damage (at Bootleaf stage)
5. GLH 5/hill at vegetative stage, 10/hill flowering stage, 2/hill in
RTV endemic areas
6. BPH (Brown 1/tiller; 2/tiller when spider present at 1/hill
Plant Hopper)
7. Earhead bug 5 bugs/100 panicle - Flowering stage
16 bugs/100 panicle - Milky stage
