During the growth season, mustard needs cool, dry weather with a moderate amount of soil moisture, as well as dry, clear conditions when the plant is ready to harvest. They're cultivated in India throughout the Rabi season, which runs from September-October to February-March. Although mustard may grow in sand to clay loam soils, light loam soils are optimal for it. Do not put up with standing water or dense soils. The optimal soil for their healthy growth and development has a pH that is neutral.

Diamondback moth: Plutella xylostella

1. putting up a pheromone trap at 5 per acre to track moth activity.
2. At least twice a week, collect and carefully destroy the larvae at the gregarious stage.
3. Apply 5% malathion dust @37.5 kg/ha to suppress adult larvae.

Leaf miner: Chromatomyia horticola

Neem seed kernel extract (NSKE) sprayed at 5%

Mustard aphid: Lipaphis erysimi

1. At first, eliminate the aphid population and the damaged areas.
2. To keep an eye on the aphid population, set up yellow stick traps.
3. Save ladybird beetles, which are the most effective mustard aphid predators.
4. Adult beetles may consume around 10 to 15 adults every day.
5. Apply Dimethoate @625-1000 ml per ha

 Cabbage head borer: Hellula undalis

1. Twice weekly, collect and carefully destroy the gregarious stage larvae using leaves.
2. Apply 5% malathion dust at 37.5 kg/ha or carbaryl 50 WP at 375 g in 150 litres of water to control adult larvae.

Sclerotinia Stem Rot

1. Plant highly sensitive crops no more than once every four years; instead, use crop rotation.
2. For farms that are heavily infected, use a rotation of at least five years.A field that experienced severe Sclerotinia in the previous four to five years should not be planted next to.
3. Manage weeds with broad leaves.
4.  Plant only seed that has been carefully cleansed.                          

Alternaria Black Spot

1. Crop rotation lessens the spread of disease.
2. Seed should be cleaned to get rid of shrunken seed that can be black spot-infected and not very viable.
3. Use seed that germinates well (more than 90%).

White Rust

1. Use resistant varieties
2. When this disease's symptoms appear, spray Mancozeb 75 WP, 2 mg @ each litre of water.

Downy Mildew

1. Crop debris should be destroyed
2. Crop rotation should be done

As soon as symptoms are recognised, spray the crop with 0.2% Ridomil or 0.1% Karathane, then repeat the spraying two to three more times at a 10-day interval.

As soon as the pods start to turn yellowish brown, rapeseed and mustard are harvested. Bullocks or a tractor might be used for threshing once the plants had dried up. The seeds' moisture content must be reduced below 8% in order to be stored.