Walker is most known for developing disease-resistant varieties of onions, cabbages, beans, peas, beets and cucumbers.

The most effective, and in many instances the only, method available to combat these diseases is to breed and plant disease-resistant varieties of alfalfa.

Order roses, particularly hardy, disease-resistant varieties.

Because disease-resistant varieties are best suited to I.P.M., it would be wise to add some of these new apples.

He said homeowners would be wise to plant disease-resistant varieties of plants and carpet their lawns with grass seed that fares well without fuss.

Kordes dropped it in 2005, in favor of newer, more disease-resistant varieties.

After disease wiped out much of the sugarcane crop in the early 1980s, farmers switched to a disease-resistant but less productive variety.

Plant breeding to develop new disease-resistant varieties, and sound crop management practices are important for preventing disease.

Baldwin was the mainstay of the industry for many years but it has now largely been superseded by more productive and disease-resistant varieties.

Today aquaculture has several goals, including a larger output at cheaper prices, better quality, disease-resistant varieties and replenishing overfished areas.