A regulatory control of diseases in crop production is
Answer Details
The regulatory control of diseases in crop production refers to the steps taken to prevent and manage the spread of diseases that affect crops.
Out of the options given, the best answer is "quarantine." Quarantine is a process of isolating plants or crops that are suspected to be infected with a disease, to prevent the spread of the disease to other healthy plants. By separating infected plants from healthy ones, the disease is prevented from spreading further, and the healthy plants can continue to grow unaffected.
Option A, "rouging," refers to the process of removing and destroying infected plants or parts of plants from the crop to prevent the disease from spreading. This method is effective when the disease is localized, but it may not be practical when dealing with large-scale infections.
Option C, "crop rotation," involves the planting of different crops in a particular field in different seasons to reduce the buildup of pathogens that are specific to a particular crop. This method is useful in reducing the incidence of soil-borne diseases, but it may not be effective in controlling airborne diseases.
Option D, "soil tillage," refers to the mechanical manipulation of the soil to create favorable conditions for the growth of crops. While soil tillage may help control some soil-borne diseases, it may also increase the risk of soil erosion and nutrient loss.
In summary, quarantine is the most effective regulatory control measure for diseases in crop production.