Quick Answer
To prevent turnip pests in winter, cover the plants with fine mesh or fine netting to keep flying insects out, and use row covers to retain heat and moisture. Mulching and crop rotation can also help reduce infestations. Consider companion planting with garlic or hot peppers to deter pests.
Preparing the Soil for Winter Storage
Before planting turnips for winter storage, make sure the soil is free from pests and diseases. Remove any debris, weeds, and infected plants to prevent the spread of infestations. Till the soil to a depth of 8-10 inches to loosen it and improve drainage. This will help create a healthy environment for the turnips to grow.
Physical Barriers and Coverings
To keep flying insects away from your turnips, cover the plants with fine mesh or fine netting. This will prevent carrot flies and other pests from laying eggs on the leaves. Use row covers to retain heat and moisture, which helps to reduce the risk of infestations. Apply the covers in late spring or early summer to give the plants time to grow before winter.
Companion Planting and Crop Rotation
Consider companion planting with garlic or hot peppers to deter pests from your turnips. These plants release chemicals into the soil that repel insects. Crop rotation can also help reduce infestations by breaking the life cycle of pests. Rotate your crops every 3-4 years to prevent pests from building up in the soil.
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