Achievement

i. Recommendation . Contributed eight recommendations on biological suppression of

pests of potato, tomato, cole crops, sugarcane and custard apple .

  • Potato

  1. Release of Copidosoma koehleri @ 50,000 adults/ha/release four times at weekly interval (2 lakh adults/ha) commencing from 45 days after planting is recommended for the control of potato tuber moth, Phthorimaea operculella in potato crop.

  2. Spraying of SlNPV @ 500-750 LE/ha (3.0-4.5×1012 POBs/ha) is recommended for the control of Spodoptera litura in potato field.

  3. Release of Copidosoma koehleri @ 1,250 mummies/ha at weekly interval four times (total 5,000 mummies/ha) placed in perforated plastic vials (2.0×1.5 cm) hung at 5 m distance in crop commencing from 45 days after planting is recommended for the control of potato tuber moth, Phthorimaea operculella Zeller in potato field.

  • Tomato

  1. Three sprays of HaNPV @ 250 LE/ha at 10 days interval starting from 50 per cent flowering of the crop is recommended for the control of fruit borer, Helicoverpa armigera in tomato.

  2. Release of Trichogramma pretiosum @ 50,000 adults/ha/release five times at weekly interval (total 2.5 lakh adults/ha) starting from 50% flowering of the crop with three intermittent sprays of HaNPV @ 250 LE/ ha (1.5×1012 POBs/ha) at 10 days interval starting from five days after release of the parasitoids is recommended for the control of fruit borer, Helicoverpa armigera in tomato.

  • Cabbage

  1. Spraying of Bacillus thuringiensis formulation Dipel 8L @ 1 lit./ha or Halt WP @ 1 kg/ha five times at ten days interval commencing from one month after transplanting is recommended for the control of diamond back moth, Plutella xylostella in cabbage.

3.

  • Sugarcane

  1. Mass production of Dipha aphidivora, a predator on sugarcane woolly aphid be under shade net house 5x5x4 m size using 50% green shade net within two months for field release.

  • Custard apple :

  1. Two releases of predator, Scymnus coccivora ( 10 grubs/tree) or Cryptolaemus montrouzieri Mulsant ( 5 grubs/tree ) in the month of July and August are recommended for an ecofriendly management of mealy bugs on custard apple.

ii. Significant contribution

  • Biological suppression of potato tuber moth by release of Copidosoma koehleri.

  • Management of Helicoverpa armigera by integrated use of Trichogramma pretiosum and HaNPV in tomato.

  • Integrated management of diamond back moth by use of Trichogrammatoidea bactrae Nagaraja and Bacillus thuringiensis in cole crops.

  • Biological control of early shoot borer by release of Trichogramma chilonis in sugarcane.

  • Control of sugarcane pyrilla by field release and conservation of Epiricania melanoleuca.

  • Developed field release and mass production technique of predator, Dipha aphidivora against sugarcane woolly aphids.

  • Surveyed and identified alternate hosts of sugarcane woolly aphids.

  • Biological suppression of paddy stem borer and leaf folder with Trichogramma japonicum and T. Chilonis.

  • Biological control of mealy bugs in grapes, guava and custard apple with field release of Australian lady bird beetles, Cryptolaemus montrouzieri.

  • Biological control of spiralling white fly with inoculative release of Encarsia guadeloupae in guava and pomegranate.

  • Biological suppression of sucking pests (thrips, mites) of Capsicum, rose and carnation in polyhouse.

  • Developed and demonstrated Bio-intensive Pest Management (BIPM) strategies for Bt-cotton.

  • Developed and demonstrated BIPM module for potato pests.

  • Developed and demonstrated BIPM module for tomato pests.

  • Biological control of Parthenium weed by inoculative release of Zygogramma bicolorata Pallister.

  • Biological control of water hyacinth with the release of predatory weevils, Neochetina eichhorni, N. bruchi and mite Orthogalumna terebrantis

  • Recorded first time of indigenous species of parasitoid, Acerophagus papayae N & S on invasive papaya mealy bug, Paracoccus marginatus W & G in Pune region of Maharashtra.

  • Biological suppression of papaya mealy bug, with the release of A. papayae.