Achievements of the Project entitled “Field Demonstrations, Extension Oriented Activities and Research in Biological Control of Crop Pests for the SC/ST Population”  

 Sanction No. & Date -   D.O.No.B.T./PRO.670/SPD/16/40/97 dtd. 2.3.98

Total Grants          -         Sanctioned - Rs. 13 lakhs

                                       Released    - Rs. 11.46 lakhs

Period of the Project -    1st April, 98 to 31st March,2001

OBJECTIVES :

1.    To impart training to SC/ST farmers about biological methods of pest control.

2.    To impart training to SC/ST rural youths for self employment through production of biopesticides.

3.    To impart training to Extension functionaries of State Agricultural Department on biological methods of pest control.

4.    To conduct demonstrations of biological methods of pest control on fields of targeted population.

5.    To study the efficacy of standardized formulation of botanicals on different crops against different pests.

6.    To cover 15 villages during the three years of project covering SC/T Population

7.    To increase the annual income of family due to this project, the expected benefits per family per annum will be approximately Rs.3000 to Rs.5000.

ACHIEVEMENTS

A) Production

  1.    HaNPV - Thw mass production of this virus in this year i.e. from 1st April,99 to 31st March,2000 was done with the help of laboratory reared as well as field collected Helicoverpa larvae. However, more emphasis on rearing of Helicoverpa larvae in the KVK, biocontrol lab was given on the artificial diet.  Some larvae have been collected from the Helicoverpa infested plots of cotton, pigeonpea, gram, tomato and were utilised for NPV production. Uptil now we have been able to produce 200 ltrs. of NPV from last 12 months.  The total production of HaNPV including the production of last year is about 300 ltrs. which was suitably diluted and standardised to a count of 1x10 PIBs/ml.  The produce was used on the fields of SC/ST population against Helicoverpa larvae infesting cotton, redgram, gram and tomato. Presently the same work is in progress and all the necessary ingredients of artificial diets as well as the rearing devices have also been increased for getting the maximum production of this virus.  We have maintained the healthy culture of Helicoverpa in our biocontrol lab and accordingly the larvae are being utilised for NPV production.

 2.  Corcyra and Trichogramma:

 The healthy corcyra culture is maintained in the biocontrol laboratory of KVK as a host for mass culturing of Trichogramma parasites of stem borer and cotton, boll worms.  For this purpose the sterilised sorghum grains along with the palatable food additives are utilised to have maximum no.of corcyra adults.  These adults provided near about 70 CC of eggs which were given U.V. treatment and pasted on Trichocards to get Trichocards to get Trichogramma parasites.  During this year i.e. from last 12 months, we have been able to produce 140 trichocards and were used against stem borers in sugarcane and bollworms of cotton on SC/ST Population.  As the farmers are very much convinced regarding the benefit obtained from Trichogramma, parasites, the demand has increased considerably and due to which the production capacity has also increased by us to fulfil the demand of the farmers.  Next year, we will be able to produce near about 300 trichocards.

3. Chrysopa :

     This predator of sucking pest is successfully multiplied in our biocontrol lab and the chrysopid larvae prepared in lab were released against aphids, jassids, white flies, thrips infesting the crops of the SC/ST population.  Besides using the artificial diet for its multiplication corcyra eggs produced in the laboratory are also being used for feeding the chrysopid larvae

4.  Botanical pesticides

     Under the different botanicals neem oil along with Embellia rives extract gave the excellent results for preventing the infestation of various pests.  Similarly chilli-garlic extract was also prepared and utilised against the different caterpillar pests like Helicoverpa, spodoptera, pink boll worms, spotted boll worm etc. Tobacco decoction and neem seed kernel extract were also applied with different concentration and they also proved satisfactory for managing the major pests on the crops of targetted population.      In case of neem oil, it was made available from the local market and its different concentrations were tried against pests on cotton, redgram and vegetables cultivated by the targetted SC/ST population.  

 B) EXTENSION ACTIVITIES

 Trainings and Demonstrations :

      For generating the awareness and imparting the skill regarding the production and use of biopesticides and botanical pesticides training programmes and group discussions at farmers field as well as at our own campus were conducted.  Similarly the on campus training programmes on production and use of biopsticides were also conducted for extension functionaries and for the rural youths.

      The details of training programmes conducted and the no. of trainees  available for training is given below.

   

Sr No Category of Trainee             No.of trainings       No.of participants

      1.    Practicing farmers                             10                         192

2.    Extension functionaries                       03                         58

3.    Rural youths                                       02                         23 

     Total                                                     15                         273

In these training programmes the trainees were shown the slides of parasites, predators, pathogens and also they were convinced regarding the benefits of biopesticides and botanicals.

Teaching materials:

 The slides, charts, photographs of various pests, parasites and predators have been prepared and are being frequently shown to the farmers.  Similarly the folder and leaflets on production and utilisation of bioagents like NPV, Trichogramma and Chrysopa were made available for training as well as creating awareness among the targeted population.

 Demonstrations :

 The demonstrations to show use and efficacy of bioagents and botanicals were conducted on farmers fields. In this way 360 families from SC category covering the area of 272 ha. and  67 families from ST category covering the area of 73 ha. were covered.  The demonstrations were conducted on use and efficacy of NPV, Trichogramma, Chrysopa and the botanical pesticides against the pests on the important crops like cotton, sugarcane, vegetables, pulses and oilseeds.

 Following table shows the number of demonstrations conducted on various crops against different pests and the results obtained after using biopesticides and botanicals.


Efficacy of standardised botanical formulations on different crops

 Neem oil - 5% Neem oil along with the detergent detergent solution was sprayed against the sucking pests on cotton in early stages of crop growth.  This gave a very effective control of aphids, jassids and white flies. Similarly neem oil along with cow urine was also proved better against the sucking pests on vegetables.

 Chilli-Garlic Extract - The extract obtained from 2 kgs. of green chilli and half kg. of garlic was mixed with 100 litres of water and applied against Helicoverpa, spodeptera  and hairy caterpillars. This gave effective control of these lepidopterous pests.

 Tobacco decoction:

 5 % tobacco decoction obtained by boiling in water was sprayed against fruit borer in brinjal and tomato.  Also the tobacco powder was dusted on lucerne and cotton for managing the aphids @ 10 kg/acre.  Both the decoction and dust of tobacco helped in managing the above said pests.

 

Details about demonstrations conducted

Sr No Components Crops Area Demosntrated Critical Inputs Results

01

Stem borer management

Sugarcane

30 ha

Trichogramma

@ 1,00,000/ha

Observed less incidence of this pest

02 Boll worm management Cotton 35 ha

Trichogramma

@ 1,00,000/ha

Reduction of one chemical spray
03 Helicoverpa management Cotton 30 ha HaNPV @ 500 LE/ha Proper management of Helicoverpa on and reduction of chemical sprays from 4 to 2
    Redgram 35 ha --"-- --"--
    Tomato 40 ha --"-- --"--
    B’gram 40 ha --"-- --"--
04 Use of botanical pesticides for sucking pest management Vegetables 95 ha 1.Neem oil @ 1 lit/acre 2.Chilli & Garlic extract 3% 3. Tobacco decoction 5% 5% neem oil spray is effective against the sucking pests
    Cotton 07 ha

--"--

5% neem oil spray is effective against the sucking pests
    Pomegranate 08 ha

--"--

3% Chilli - Garlic extract spray reduced

5% tobacco decoction spray is effective against aphids

05 Fruit borer management Brinjal 8 ha Neem oil 1 lit + Cow urine 2 lit + Embellia ribes extract Less incidence of these pests on brinjal & tomato and saving of cost on chemicals
    Tomato 18 ha

--"--

--"--

06 Aphid & Whitefly management Cotton 6 ha Chrysoperla carnea  @ 5000 larvae/acre Management of aphids and white flies upto ETL level
    Vegetable 5 ha

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OVERALL IMPACT