Ratnagiri Agromet Advisory -
Mango
Fertilizer Management
- For regular bearing in mango, apply Paclobutrazol once a year between 15 July and 31 August to fully grown trees (above 10 years of age).
- The tendency for alternate bearing becomes more pronounced after 10 years; therefore, Paclobutrazol application is recommended during this period.
- The dose should be based on the canopy diameter of the tree.
- Measure the canopy spread in the East–West and North–South directions, calculate the average canopy diameter, and apply Paclobutrazol @ 0.75 g active ingredient per meter of average canopy diameter.
- For example, if the canopy spread is 5 m (East–West) and 7 m (North–South), the average canopy diameter will be 6 m, requiring 4.5 g active ingredient of Paclobutrazol.
- When using a 23% Paclobutrazol formulation (e.g., Cultar or Celstar), apply 3 ml per meter of average canopy diameter.
- Thus, for a tree with a 6 m average canopy diameter, apply 18 ml of Cultar/Celstar. Mix the required quantity in 3–6 liters of water and apply the solution uniformly around the tree trunk.
- Make 25–30 holes, 10–12 cm deep, at equal spacing around the tree, approximately halfway between the trunk and the canopy drip line, or prepare a circular trench (ring) using a hoe.
- Pour the prepared solution uniformly into the holes or trench and cover them with soil.
- Remove all weeds around the tree before and after the application of Paclobutrazol. (Note: Apply Paclobutrazol only during a rain-free period or when the rainfall intensity is low.)
Paddy
Caseworm
- Complete the transplanting of rice seedlings at the earliest in areas where transplanting is yet to be completed.
- In areas where transplanting operations in rice are completed maintain a water level of 2.5-5 cm in the transplanted rice fields and ensure drainage of excess water.
- Due to cloudy and humid weather conditions, there is a possibility of infestation of caseworm in rice.
- The adult moth is small, delicate and milky white, with small light-black spots on its wings.
- The larva is transparent, pale greenish-white in colour.
- The larva cuts small pieces from tender rice leaves, rolls them into leaf cases and remains inside them.
- During night, the larva climbs onto the rice plants along with the case and scrapes the green leaf tissue.
- This results in white stripes on the leaves, giving the field a pale or whitish appearance.
- Severe infestation may cause stunted crop growth.
- The leaf cases can be seen hanging from the leaf margins or floating on the water surface.
- For management, maintain water in the field and drag a heavy rope horizontally across the crop.
- This causes the leaf cases to fall into the water.
- After 1–2 hours, drain the field water from one side so that the cases collect at one place, and destroy them.
- If required, spray Deltamethrin 1.8% EC @ 13 ml per 10 liters of water or Cartap hydrochloride 50% SP @ 12 g per 10 liters of water or Lambda-cyhalothrin 5% EC @ 10 ml per 10 liters of water.
Leaf folder
- Cloudy and humid weather conditions along with intermittent rainfall may favour the incidence of leaf folder in rice.
- The adult moths are golden to pale yellowish in colour, with black zigzag markings on the wings and dark smoky margins.
- Newly emerged larvae are whitish-green, while fully grown larvae are yellowish-green with a dark head.
- The larvae remain inside the folded leaves.
- When the folded leaf is disturbed, the larva quickly comes out and exhibits vigorous, wriggling movements.
- The larva folds the leaf by webbing the two margins together and remains inside, feeding on the green leaf tissue from the inner surface.
- This results in whitish patches on the outer surface of the folded leaf. Severe infestation may give the crop a pale and unhealthy appearance.
- For management, keep the bunds clean after rice transplanting and ensure proper drainage of excess water.
- If incidence is observed, spray Quinalphos 20% @ 18 ml per 10 liter water or Lambda-cyhalothrin 5% EC @ 5 ml per 10 liter water or Cartap hydrochloride 50% SP @ 20 g 10 liter water. (Note: The above sprayings should be carried out when no rainfall is expected for at least 3 to 4 hours. To prevent the insecticide/fungicide from being washed off from the leaves by rain, mix a sticker (adhesive substance) in the solution before spraying.)
Finger Millet
Transplanting
- Complete the transplanting of finger millet / proso millet seedlings at the earliest in areas where transplanting is yet to be completed.
- (Note: Carry out transplanting of finger millet / proso millet when rainfall intensity is low.)
Arecanut
Fertilizer Management
- Apply the first split dose of fertilizers to arecanut palms during August–September.
- The first split dose should consist of 1 basket (ghamela) of farmyard manure or compost, 12 kg green manure, 160 g urea, 500 g single super phosphate, and 125 g muriate of potash per palm.
- Apply the fertilizers in a circular trench (ring method) dug 1 meter away from the base of the palm, about 15–20 cm deep and 20 cm wide. (Note: The fertilizer should be applied when rainfall intensity is low / during dry spell.)
Turmeric
Vegetative growth
- As heavy rainfall is forecasted, ensure proper drainage of excess water from turmeric fields to prevent waterlogging.
Cucumber
Flowering to fruit set
- In cucurbitaceous crops, fruit fly infestation is likely to occur after the onset of fruiting.
- Therefore, for management of fruit flies, install Cue-Lure-based protective traps from the onset of flowering.
- Hang the traps in the bower (mandap) at a height of 1–2 feet above the ground.
Groundnut
Tikka Leaf Spot
- As heavy rainfall is forecasted, ensure proper drainage of excess water from groundnut fields to prevent waterlogging.
- Cloudy and humid weather conditions may favour the incidence of tikka (leaf spot) disease in groundnut.
- Initial symptoms appear on the leaves as dark brown, circular spots surrounded by a yellowish halo.
- As the disease progresses, the spots may coalesce, causing the leaves to dry and fall prematurely.
- Severe infection may result in poor pod development and filling.
- At the appearance of initial symptoms, spray either 1% Bordeaux mixture or the combination fungicide Carbendazim 12% +Mancozeb 63% @ 20 g per 10 liters of water.
- (Note: The above sprayings should be carried out when no rainfall is expected for at least 3 to 4 hours.
- To prevent the insecticide/fungicide from being washed off from the leaves by rain, mix a sticker
- (adhesive substance) in the solution before spraying.)
Niger
Sowing
- As heavy to very heavy rainfall is forecasted, ensure proper drainage of excess water from niger fields to prevent waterlogging.
Cashew
Fertilizer Management
- Apply the recommended fertilizer dose to cashewnut grafts during the month of August.
- For cashewnut grafts aged four years and above, apply 4 baskets (ghamelas) of farmyard manure or green manure, 2 kg urea, 1.5 kg single super phosphate, and 500 g muriate of potash per tree.
- Apply the fertilizers in a circular trench (ring method) dug slightly inside the canopy spread of the tree.
- For one-, two-, and three-year-old cashewnut grafts, apply one-fourth, one-half, and three-fourths of the recommended fertilizer dose, respectively. (Note: The fertilizer should be applied when rainfall intensity is low / during dry spell.)
Coconut
Bud rot disease
- High humidity conditions favour the incidence of bud rot disease in coconut.
- As a preventive measure, spray either 1% Bordeaux mixture or Copper Oxychloride @ 0.25% (25 g per 10 L of water) during clear weather.
- Ensure that the fungicide reaches the lower portion of the spindle leaf while spraying.
- Repeat the second spray 15–25 days after the first spray. (Note: The above sprayings should be carried out when no rainfall is expected for at least 3 to 4 hours. To prevent the insecticide/fungicide from being washed off from the leaves by rain, mix a sticker (adhesive substance) in the solution before spraying.)
LIVE STOCK
Animal husbandry
- Vaccinate all eligible animals that have not yet received the Foot-and-Mouth Disease (FMD) vaccine.
- This disease is caused by virus.
- The main symptoms include fever, reduced feed and water intake, and the appearance of blisters on the tongue and soft tissues inside the mouth.
- Blisters also develop between the hooves, which later rupture and form wounds.
- The disease spreads from infected animals to healthy ones through direct contact, as well as through contaminated feed and water.
- Hence, infected animals should be isolated from healthy ones.
- On observing any symptoms of the disease, immediate treatment and vaccination should be carried out under the guidance of a veterinary officer.
- For more detailed information regarding Foot and Mouth Disease (FMD) visit Dr. B.S. Konkan Krishi Vidyapeeth YouTube channel with the help of the following linkhttps://www.youtube.com/watch?v=gLHJCYsBrvg&t=157s
Source: State agriculture departments and ICAR agro-meteorological units, based on India Meteorological Department (IMD) medium-range weather forecasts · View source →. Updated: weekly or bi-weekly per advisory cycle · Report an error