Such resistant varieties also tend to show stability, persisting after the fungicide has been removed from the market.
42.
There are some resistant and partially resistant varieties which are necessary in landscapes where white rust is present.
43.
We expect this insect resistant variety of cotton seed to go down very well with farmers in India.
44.
But they now have new diseases to worry about, like AIDS, and drug-resistant varieties of old ones, like tuberculosis.
45.
Buy a disease-resistant variety.
46.
In drought-prone countries, Sibal urged governments to encourage farmers to diversify crops, plant drought-resistant varieties and start water conservation programs.
47.
The lack of economic importance of rough leaf spot is thought to be due to the prevalence of resistant varieties.
48.
Currently, the taro exportation of Samao has rebounded due to crossing the Samoan variety with resistant varieties from Southeast Asia.
49.
Dutch breeders, who have monopolized the industry since then, have systematically eliminated the virus from modern stocks by developing resistant varieties.
50.
Scientists believe a resistant variety that will be widely popular with farmers and consumers may be up to 10 years away.
