MUMBAI (Commoditiescontrol) - Whitefly attack has been found in above economic threshold in few districts of Punjab, while cotton crop sown after July 15 in Gujarat have more probability of getting infected with pink bollworm, said Central Institute for Cotton Research (CICR) in its weekly advisory for cotton cultivation from July 25-31, 2016.
Meanwhile cotton crop in rest of the states are in better shape, it said.
Highlights of CICR Weekly Advisory
Punjab-Haryana-Rajasthan: Twenty villages in Fazilka District, six in Bathinda, one in Barnala followed by one in Sangrur, six in Faridkot district and four in Muktsar district showed whitefly population above economic threshold.
It has asked farmers to use appropriate pesticides in order to minimize the impact of whitefly in cotton crop.
At Hissar, the crop is normal at flowering and reproductive stage. Leaf hopper infestation has been noticed. At Sirsa, the crop is 65 to 80 days old at vegetative, squaring and flowering stage. Hoeing, weeding and intercultural operations are in progress. Weed infestation has been observed in fields after rainfall.
At few farmers’ locations in Sirsa whitefly ranged between 4-10 /3leaves found in a survey conducted on 22.07.16.The leafhopper has crossed ETL at many locations at farmers field. The incidence of spotted bollworm has been noticed in Desi cotton. The root rot and blackening of stem at collar region has been observed at few locations at farmers’ field. Farmers are advised to monitor the crop regularly for pest build up. Need based application of neem based insecticides+ nirma powder is advised in the specific field harboring whitefly population near to ETL.
Gujarat - Gujarat has received deficit rainfall at -30 to -70% less than normal in the main cotton growing districts. Reports show that less than 30% of the area was timely sown. An area of about 13.65 lakh hecatres was sown before 11th July and about 17.7 lakh hectares were sown before 15th July. Over the past three years Gujarat had sown cotton in 28-29 lakh hectares each year. Crop sown after 15th July will clearly face problems of the pink bollworm. Farmers are advised to avoid sowing of cotton after this week. Early and timely sown short duration crop escapes insect pests and gets soil moisture at the crucial flowering and boll formation stage thus resulting in high yields with less need for inputs. Late sown crop will need to be managed for the pink bollworm. At Junagadh, the crop is 21 days old.
Madhya Pradesh - At Khandwa, the crop is 54 days old at vegetative stage.
Maharashtra - Field reports indicate that cotton crop is very healthy in Maharashtra. Care must be taken to ensure that urea application is done as per recommendations and never in excess, to avoid problems from leaf hoppers (Jassids). Though rains were received in Marathwada during 17-20th June, monsoon arrived in Maharashtra on 23rd June. Rainfall was evenly distributed for the subsequent 20 days. Crop sown before 26th June would be most benefitted. However cotton sowing was completed in only 2.35 lakh hectares before 25th June. Thus far cotton sowing has been completed in about 33 to 35 lakh hectares in Maharashtra. By 2nd July 15 lakh hectares were sown and by 9th July sowing was completed in 27 lakh hectares. Good rains are predicted across the State through the season and good yields can be expected. However, crop sown after 15th July will not grow properly and may result in low to moderate yields. Late sown crop, including BG-II hybrids would suffer from pink bollworm.
Telangana - Rainfall distribution in Mahabubnagar and Nalgonda is unsatisfactory and uneven. Other cotton growing districts have received adequate rains. Moisture conservation measures are strongly recommended in Warangal, Khammam, Mahabubnagar and Nalgonda. Insect pest or disease reports have not been received from any part of the State.
Karnataka - Sowing of Bt cotton is completed in all the cotton growing areas. Crop is vegetative growth stage with a duration of 30 to 40 days in majority areas. Early sown crop in Haveri and Belgaum districts is 40 to 45 days old and the crop is at peak growing stage.
Tamil Nadu - Cotton sowing is in progress. The sown crop is in germination stage. Anticipating light rainfall, sowing in cotton may be taken up in rest of the areas. Preparatory tillage has been carried out.
(By Commoditiescontrol Bureau; +91-22-40015533)
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