Symptoms and economic importance of crop diseases - SS2 Agriculture Past Questions and Answers - page 2
Which of the following is a symptom of crop diseases?
Brighter coloration
Stronger roots
Increased growth
Leaf spotting
What is the primary concern for farmers when facing crop diseases?
Exporting crops
Increasing yields
Reducing labor costs
Protecting their income
What role does crop rotation play in disease management?
It exacerbates crop diseases.
It has no effect on disease control.
It helps reduce disease pressure.
It increases crop susceptibility.
How do international trade restrictions impact farmers' income?
They have no impact.
They lead to higher income.
They can reduce income by limiting market access.
They increase demand for crops.
What is the primary aim of disease-resistant crop varieties?
To weaken crop resistance
To enhance crop yield
To increase disease prevalence
To reduce the need for disease management
Describe two common symptoms of crop diseases.
Common symptoms of crop diseases include leaf spotting, where leaves develop spots or lesions of varying colors and sizes, and wilting or stunting of plants, where they don't grow properly, leading to smaller harvests.
How can farmers mitigate the economic impact of crop diseases?
Farmers can mitigate the economic impact of crop diseases through various strategies such as implementing proper crop rotation, choosing disease-resistant crop varieties, practicing good hygiene and sanitation in the field, timely detection and management of diseases, and investing in effective pest and disease control measures like pesticides when necessary.
Explain the relationship between crop diseases and food security.
Crop diseases can threaten food security by reducing crop yields and quality. When diseases affect major food crops, it can lead to shortages in the food supply, higher food prices, and decreased access to nutritious food, ultimately impacting the well-being of populations and food security on a global scale
What are some preventative measures that farmers can take to control crop diseases?
Farmers can take several preventative measures to control crop diseases, including:
Crop rotation to disrupt disease cycles.
Using disease-resistant crop varieties.
Practicing proper field sanitation.
Monitoring crops for early signs of disease.
Applying integrated pest management strategies.
Employing biological controls.
Reducing stress on plants through proper irrigation and nutrition.
How can international trade be affected by the presence of crop diseases in agricultural products?
The presence of crop diseases in agricultural products can significantly impact international trade. Many countries impose import restrictions to prevent the spread of diseases, which can limit market access for affected nations. It can lead to trade disputes, decreased export opportunities, and economic losses for countries heavily reliant on agricultural exports. Additionally, phytosanitary regulations and inspection procedures may become more stringent, affecting the flow of agricultural goods across borders.