Which crops are within the host range of Beet curly top geminivirus?

Beet curly top geminivirus primarily affects crops within the Amaranthaceae family and has a significant impact on both sugarbeets and various cucurbits. Sugarbeet is notably susceptible to this virus, resulting in serious economic losses in areas where it is prevalent. Cucurbits, which include plants like cucumbers and melons, can also serve as hosts for the virus, enhancing its spread.

Potatoes, while an important crop, are not typically in the host range of Beet curly top geminivirus. The virus is not known to infect potatoes significantly, making this distinction critical.

Tomatoes, listed in option A, are similarly not widely recognized as hosts for the virus, further reinforcing that the crops within the host range should predominantly include sugarbeet and specific cucurbits.

Crops like lettuce, peppers, beans, spinach, cabbage, and cauliflower from other options fall outside the primary host range of Beet curly top geminivirus, emphasizing the specificity of this virus to certain crops like sugarbeets and cucurbits.

Therefore, the correct answer accurately reflects the known host range of Beet curly top geminivirus.