Farmers Corner

Agrometeorological Advisories (Kozhikode District)

(Period: 05.0.2022 to 09.01.2022)

General Condition

The sky will be cloudy to partially cloudy. Low night temperature and high day temperature will be experienced. Hence there will be large difference between day time temperature and night temperature. The atmospheric humidity also will be high.
Fungal diseases like blight, leaf spots and wilt may spread in crops. Keep vigilance. Take control measures in the beginning stage of diseases.
In plantation crops, water conservation measures should be adopted. Give mulching in the soil with crop residues, green or dried leaves. The trashes used should be free of any pest and diseases. Avoid the trashes of the same species as mulch. This will help to prevent the multiplication of crop specific pest and disease causing organisms. Powdering the top soil using a secondary tillage implement and spreading it uniformly over the field, will help to conserve water for a long period of time in the fields.

Cashew

Seedlings (up to four years): Tea mosquito attack and associated fungal diseases
Prophylactic spray of combination of Bordeaux mixture (1% strength) + quinalphos (2ml/litre of the Bordeaux mixture )
If die back is seen apply combination of hexaconazole and malathione (@ hexaconosozole 1ml + malathione1ml per litre of water)

Coconut  

Various stages: Red palm weevil
The palms can be saved only if the attack is diagnosed at an early stage. Hence more frequently inspect the palms. The attack can be diagnosed by the presence of yellowing of upper and middle whirls of leaves and holes at the jointing region of leaf petioles to the trunk. Insect excrement, pupal cases etc. may also be seen in the crown or basins of the palms.
Control: Prepare Spinosad @ 4ml/litre of water and fill in the holes on the trunks and axils of the second and third whirls of leaves, from the spindle leaf.
Adopt field sanitation.

Tomato

Growing stage: Fusarium wilt
Spray Bavistin (@2ml/litre

Black pepper

All stages: Mealy bugs on the roots: Syptoms: Older leaves turns dark yellow. While opening soil in the rootzone, mealy bugs can be seen (as shown in the piture) sticked on the roots.

Open the top soil. Drench the soil (only if the bug is seen sticked on the roots) with Chlorpyriphos @ 2ml/litre or apply Fipronil granule @ 20g/vine.

Cucurbits

All stages: Powdery mildew on cucurbits
As a prophylactic measure apply ‘Mancozeb’(@ 2g/l of water).
If disease appeared, spray lime sulfur (@3g/L of water) on both surfaces of the leaves. Repeat after 10 days.

Bitter gourd

All stages: Fruit fly
Setting up of pheromone trap(Cue lure @1/15 cent)
+
Spot application of 10 % jaggery containing 0.1 % malathion@1 spot/40 m2 on underside of leaves at fortnight intervals.

Cucurbitaceous vegetables

 All stages: Yellow mosaic virus
Pull out the infected plants and burn or burry them.
Spray difenthiuron @ 1g/ litre.

Amaranths

All stages: Leaf blight

Avoid overhead irrigation. Irrigate gently the basal regions of the plants. If disease is severe, apply cow dung slurry supernatant (2%) as foliar spray and Pseudomonas flourescens (2%) or Trichoderma viridae (2%) as soil application.

Animal Husbandry

Location specific vaccination and de-worming have to be given with the consultation of nearby veterinary doctor. Spray copper sulphate to control snails. Keep the surroundings dry and clean. The litters in the poultry house should be kept dry and turned frequently.

Source: KERALA AGRICULTURAL UNIVERSITY, VELLANIKKARA, KAU POST, THRISSUR, KERALA AAS BULLETIN FOR KOZHIKODE DISTRICT AMFU,AGRICULTURAL RESEARCH STATION
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മലയാളത്തിനായി ഇവിടെ ക്ലിക്ക് ചെയ്യുക

Attention banana growers-root mealy bug-a new threat to banana cultivation.
      Banana plants of varieties Nendran and Rasthali grown in about three hectares of leased land at Poozhithode of Kozhikode district has been found to be severely infested with root mealy bug. Symptomatology- The plants were at six months old stage. Five thousand five hundred plants were grown in the area of which about 120 plants were showing symptoms like creamy white discolouration of the last unfurled leaf and the leaf remaining unopened for longer duration, with a burnt like appearance at the tip. The feeder roots were found to be severely damaged with dead root hairs. Live stages of mealy bugs including immatures and adults were collected from the soil, confirming the severe incidence of mealy bugs in the soil. The banana suckers which were brought from nurseries of Mukkom and Kuttiadi areas and planted without proper curing is suspected to be the possible source of infestation. Similar cases have also been reported from Kelothvayal and Chathamangalam areas of the district.
Prevention is better than cure Since suckers are suspected to be the possible source of infestation, spread of this serious pest is to be checked by prevention of use of suckers from infested areas within and outside the state. Dipping of suckers in boiled water for 10 seconds helps to destroy the live stages of mealy bug adhered to the sucker. Soil drenching of chlorpyriphos 20 EC @2.5ml per litre of water in the root zone may be taken up in consultation with the Agriculture Officers of the area.