author(s)
SM Wankhede, VV Shinde, HP Maheswarappa and SL Ghavale

abstract
The field experiment was conducted to validate the IPM and INM combination package for the management of coconut eriophyid mite at AICRP (Palms), Regional Coconut Research Station, Bhatye Dist. Ratnagiri (M.S.) during 2016-17 to 2019-20. The two treatments were evaluated with paired block design in a plot having 50 palms for each treatment. Integrated package included INM (Recommended NPK dose, FYM @ 20kg, Vermicompost @ 20kg, Neem cake @ 5kg, cowpea/sunhemp as green manure crop in basin, Coconut husk incorporation @10kg/palm, Micronutrient application @ 500g/palm, Keraprobio (100 g/palm) were applied in May-June) and IPM (consisting of, root feeding of Fenpyroximate 5 % @ 10 ml + 20 ml of water was given in March and palm oil sulphur 5g emulsion was sprayed in December). The other set of treatment was application of recommended NPK dose and FYM only (Control plot). The pre-treatment data indicated that the incidence of eriophyid mite was recorded 65.2 per cent in treated plot and 63.7 per cent in control plot. The mean data of 2017 to 2020 indicated that the mite infestation significantly decreased to 19.6 per cent in IPM and INM treatment. Whereas, it was increased to 71.2 per cent over pre-count observations in untreated control. Regarding eriophyid mite grade index and intensity, the grade index in INM & IPM plot significantly declined to mild with grade index of 0.3 and average mite population 3.96/16 mm2 which were significantly superior over control plot which recorded higher index and population (1.68 and 15.91/16mm2, respectively). INM with IPM treated plot recorded maximum nut yield (116 nuts/palm) with the highest B:C ratio 2.67 as compared to control (83 nuts/palm).