Advisory for the month of December 2018

 

At present, late kharif onion and garlic crops are standing in the fields and rabi onion is to be transplanted. Onion seed crop is also standing in some farmers’ fields. In these conditions, the following advisory should be followed.

A. For standing late kharif onion crop

1.     Foliar application of micronutrient mixture (5 g/L) is recommended at 45, 60 and 75 days after transplanting.

2.     First prophylactic spray with methomyl (0.8 g/L) along with mancozeb (2.5 g/L) is recommended. This will take care of foliar diseases and thrips incidence.

3.     Second foliar spray with carbosulfan (2 ml/L) along with tricyclazole (1 g/L) is recommended after 15 days of first spray, if required.

4. Third foliar spray with profonophos (1 ml/L) along with hexaconazole @ (1 g/L) is recommended after 15 days of second spray, if required.

5.  If required, fourth foliar spray with fipronil (1 ml/L) along with propiconazole (1 g/L) is recommended after 15 days of third spray.

B. For rabi onion seedlings transplanting

1.     Proper care should be taken while selecting seedlings for transplanting. Over and under aged seedlings should be avoided.

2.     Seedlings of 45-50 days old should be transplanted at a spacing of 15 ×10 cm (15 cm between the rows and 10 cm between plants).

3.     The onion seedling should be transplanted after dipping roots in carbendazim solution (0.1%) to reduce the incidence of fungal diseases.

4.     If there is an incidence of thrips/foliar diseases, first spray with methomyl (0.8 g/L) along with mancozeb (2.5 g/L) is recommended at 20 days after transplanting. This will take care of foliar diseases and thrips incidence.

5.     Second spray of profenophos (1 ml/L) along with hexaconazole (1 g/L) is recommended to control foliar diseases and thrips incidence, if required.

6.     First top dressing of nitrogen @ 35 kg/ha may be applied at 30 days after transplanting.

7.     Hand weeding should be done at 40-60 days after transplanting.

C. For standing garlic crop

1.     Foliar application of micronutrient mixture (5 g/L) is recommended at 30, 45 and 60 days after transplanting.

2.     First prophylactic spray with carbosulfan (2 ml/L) along with tricyclazole (1 g/L) is recommended.

3.     Second spray with methomyl (1 g/L) along with mancozeb (1 g/L) is recommended after 15 days of first spray, if required.

4.     Third spray with profenophos (1 ml/L) along with hexaconazole (1 g/L) is recommended after 15 days of second spray, if required.

5.     If first three sprays were over, fourth spray with fipronil (1 ml/L) along with propiconazole (1 g/L) is recommended after 15 days of third spray, if required.

6.     Second top dressing of N at 25 kg/ha is recommended at 45 days after planting.

7.     If there is an incidence of red spider mite, foliar spray with elemental sulphur (2 g/L) or dicofol (2 ml/L) is recommended.

D. For standing onion seed crop

1. Hand weeding should be done at 40-60 days after transplanting.

2. First spray with meyhomyl (1 g/L) along with tricyclazole (1 g/L) is recommended.

3. Second spray with profenophos (1 ml/L) along with mancozeb (1 g/L) is recommended after 15 days of first spray, if required.

4. Third spray with carbosulfan (1 ml/L) along with hexaconazole (1g/L) is recommended after 15 days of second spray, if required.

5. If first three sprays were over, fourth spray with fipronil (1ml/L) along with propiconazole (1 g/L) is recommended after third spray, if required.

6. Second top dressing of nitrogen @ 30 kg/ha may be applied at 45 days after planting.

7. Pesticides are not recommended 80 days after planting. Spraying pesticide after 80 days is harmful to pollinators.

8. No insecticide/pesticide spray to be done after flower initiation.