Dr. Charles N Waturu Centre Director KARI-Thika P.O. Box 220 ...

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Data Collection• Counts of target and non-target pests• Counts of damaged squares• Counts of natural enemies• Arthropod diversity• Harvested boll count• Seed-cotton yield• Seed sampling for PMG• Costs and yield data for economic study
Data Analysis• Treatments denoted with codes• Counts data transformed (SQR of X+1)• 2 way ANOVA• Student Newman Keuls (SNK) test• Data presented tabular and graphical
Page 4: Purpose of Bt-cotton Introduction
Page 8 and 9: Last but not leastWe invite who wou
Page 10 and 11: Important Cotton PestsBollworm on C
Page 12 and 13: Important Cotton PestsSemi-looper a
Page 14 and 15: Important Cotton PestsSucking Pests
Page 16 and 17: ObjectiveEstablish a reference base
Page 18 and 19: Methodology• Districts covered Me
Page 20 and 21: Screen-house EvaluationPhase IIScre
Page 22 and 23: Methodology
Page 24 and 25: Confined Field Trial (CFT)Phase III
Page 26 and 27: MethodologyTest Varieties• DP 448
Page 28 and 29: MethodologyVariety CharacteristicsC
Page 32 and 33: ResultsBollworm Larvae Survival3025
Page 34 and 35: ResultsSemi-looper Larvae Survival1
Page 36 and 37: ResultsLadybird Beetle Larvae Survi

Dr. Charles N Waturu Centre Director KARI-Thika P.O. Box 220 ...

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