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
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
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.
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 |
--"-- |
--"-- |
Increase in awareness about biopesticides among the SC/ST farmers
Utilizations of indigenous inputs like chilli, garlic, tobacco, neem seed in plant protection
Reduction in cost of Plant Protection
Increased participation of SC/STs in the trainings of biocontrol methods
Dissemination of use of Biopesticides among farmers through Extension Functionaries
Income generation in Rural Youths through Collection for Helicoverpa for NPV production in KVK Biocontrol Lab
Identification
of Chrysopa in the field by farmers.