Third to Fourth week practices in carrot crop

Monitor your field for some disease and insect/pest incidences-

Aphids:

https://cdn.shopify.com/s/files/1/0722/2059/files/aphid-1_480x480.png?v=1647862436

Symptoms:

  • Aphids of nymphs and adults stage suck the plant sap usually on the young growing and succulent plant parts.
  •  The young leaves, stems, buds, flowers, fruits or peaches gets affected.
  • The plants which are attacked by aphids show the symptoms of twisted, curled or swollen branches, leaves and stems.

Management:
Spray with Actara-0.5gm/lt or Dhanpreet -0.5gm/lt + Econeem plus-1ml/lt of water.

Aster leafhopper: 

Province of Manitoba | agriculture - Aster Leafhoppers and Aster Yellows

Nature and symptoms of damage

Both nymphs and adults feed by inserting piercing and sucking the plant to extract sap. If a leafhoppers feed on an infested plant, it ingests the aster yellow pathogen. When the leafhopper moves to another plant to feed, it transmits the pathogen in its saliva. In carrots, disease symptoms appear about 3 weeks later. Symptoms may appear as early as 10 days after infection or as late as 40 days after infection. 

Management: 

Aster leafhoppers may effectively be controlled by excluding them from carrot planting with floating row covers. Place the yellow sticky cards in the field early in the spring when plants are newly sprouted. Remove weeds from the field edges as these may be reservoirs for the pathogen.


Comments

Leave a Reply

Your email address will not be published. Required fields are marked *