ON FARM TESTING
1. OFT on coconut mite
As per the
direction of Government of India a high power team under the leader ship
of Dr. HameedKhan, Project Coordinator (Plantation) CPCRI, Kasaragod,
visited Agatti, Kavaratti and Kalpeni to conduct survey of Mandari
infestation. Presence of mandari was confirmed at Kalpeni. A training
programme on mandari was organized on 12, 13 and 14 January 2000 for Agrl.
Officer's and KVK Staff during their visit. The experts took
classes on identification and control of coconut mite.
consisting officers of Agrl. Department and KVK staff under the leader ship of
Training Organizer visited Kalpeni on 10.01.2000 and conducted survey of
total trees at Kalpeni and its attached islets of Cheriyam, Pitty,
Thilakam (1,2,3). Out of the total one lakh bearing trees 20,000 trees
were found infested with coconut mites. Seeing the gravity of the infestation and
need of immediate checking of further spread an OFT was proposed.
1. The size of the
developing nut is reduced considerably, resulting in reduction of Kernel
weight and quality of husks due to mite attack.
2. In severely
affected bunches up to 30% of the buttons are shed leading to heavy loss to
3. In certain
locations when infested nuts were cut open the kernel was observed to be
thicken but lesser in weight by 30%-40% when compared with uninfected nuts.
4. Warting and
fissures observed on the surface of the nuts leads to hardening of the husk.
The warting in the nuts had made the husks unsuitable for coir production.
The out turns of the coir has been reduced by 40 %.
5. The tender nuts
with warting symptoms has reduced acceptability by the consumer and
fetches low market price or no market.
6. The marketable
value of nut is reduced by 30% to 40%.
7. The reduction
in marketable value of nuts, copra contents, poor quality of husks,
reduced price for tender nuts etc has in turn cripple the economy of the
farming community of which their very sustenance was dependent. This pest
is new to the island and farmers were ignorant about the consequence.
1. A systematic
survey was conducted at Kalpeni and its satellite island for
assessing the magnitude of eriyophid mite problem.
2. Affected palms
marked for control operation.
3. All young
affected 2 to 6 months old nuts and bunches from the affected palms
removed, burnt/buried to prevent spread to other areas.
4. The affected old
nuts when harvested are to be dehusked and the husk to be burnt/buried.
5. Spraying of
the affected palms with 2% Neem oil and Garlic mixture 500 ml per tree
(20ml neem oil, 1L water, 20 g Garlic, 5 g Soap) with the help of
a) 5g Bar soap dissolved
in 1/2 L water and then adds 20ml neem oil and stir well.
b) Crush 20 g Garlic
and dissolve in Half Litre water and stir.
c) Add a + b
6. Spraying to be
repeated after 30 days.
in affected trees has been noticed due to organic control measures, but spread
in to un affected areas are there.
2. Management of
important pests of vegetables by Organic Pesticides:-
is one of the major causes of low productivity in vegetables.
Farmers are using highly toxic pesticides in high concentration to control
these pests. But now a days, eco-friendly pest control methods are recommended
against vegetable pest, considering health and ecological problems. On an
average about 30% of yield loss is caused by insects. Much of this loss can be
easily avoided by adopting proper eco-friendly methods of pest management.
up spraying pesticides without much understanding about the type of
pest and the stage of infestation. Generally control measures are taken
after severe damage and loss due to severe pest attack. So this particular OFT is
being proposed to find out the suitable control measures against major pest of
vegetables like white flies, fruit flies and jassids of brinjal, Epilacna
beetles and pumpkin beetles of bitter gourd and cucumber fruit flies of bitter
gourd and cucumber.
1. Brinjal & Bhindi:
Major pests noticed are Jassids, Aphids, mites and fruit borer.
a) For aphids, jassids
and mite very good control was observed by spraying a mixture of caster
Oil, Neem oil, soap and garlic.
(b) For jassids a
combination of spray (a) and yellow traps was more effective than
(c) The caster
coated yellow trap was effective in trapping jassids when plants are
(d) Mites:- Fort
night interval spraying of diluted kanchi water (starch) on the lower side of
the leaves found to be very effective. This is in addition to the
control, Neem Oil, Garlic and soap solution.
(f) Fruit borer:-
1. Cut and remove
the infested fruits and branches.
2. Spraying of Neem
seeds extracts give good results.
Major pests observed is serpentine Leaf minor. Best control was obtained with Neem oil emulsion.
noticed was serpentine leaf minor. Control was obtained with Neem
iv. Snake Gourd &
problems were Fruit flies and serpentine leaf minor
fruit must be cut and removed and buried or burnt.
2. Set up
traps in 4-6 places.
3 traps tried Banana + Furadon traps showed better result than other (Tulasi
trap, Kanchi (starch) water trap.
3. EVALUATION OF
PHEROMONE TRAPS FOR THE CONTROL OF RHINOCEROS BEETLE.
beetle (Oryctes rhinoceros) is a serious pest in coconut palm and causing
of severe economic damage. The grubs breed in the soil and the adult
beetles feed on the young spear (foliage) of the palm. The most susceptible
period is the first 2-3 years from planting. It is estimated that the
pest on an average causes 10% loss in production of nuts and the injured
portion is susceptible to other pests and diseases. This pest breeds in decaying
organic debris such as farm yard manure, rubbish heaps, dead coconut logs,
buried coconut husks mixed with decaying materials.
release formulation of pheromone for Oryctes rhinoceros.
for mass trapping of adult beetles, both male and female.
- Longevity 2
to 3 months depending on the climate conditions.
Plot A. 1. Total
number of trees in the plot
of trees infested
number of leaves infested 7.7 (2-15)
of spathes infested
Plot B. 1. Total
number of trees in the plot
of trees infested
number of leaves infested 7.2(3-13)
of spathes infested
Plot A. Number of
beetles trapped in 30 days - 100 Nos.
Plot B. Number of
beetles trapped in 30 days - 68 Nos.
trapped in 30 days
- 168 Nos.
OFT ON RECHARGING OF GROUND WATER
in U T of Lakshadweep is a tiny coral island where ground
water occurs as a thin fresh water lens floating over the sea water and is
in hydraulic continuity with sea water. In general., ground elevation of
islands varies from 1.5 meter MSL, there is limited scope of fresh water
build up above the mean sea level. Hence any large scale of draft of
ground water leads to deterioration of ground water quality due to sea water
intrusion. Earlier conservation of ground water wastes achieved through
using large village tanks (attached to mosques and houses) for bathing and
washing purposes. Such tanks were cleaned periodically, however with the advent
of modern life style the present generation is doing away with these traditional
tanks preferring piped water supply and energized wells to this tanks.
The present OFT is proposed to recharge ground water by
using rain water falling on the terrace or roof top which is directly
connected to the filter media and ultimately reaches to the well without
even a loss of single droplet.