Question

What Causes The Late Blight Of Potato?

Answer 1

Late blight of Potato:

1. Late blight, often known as potato blight, is a disease caused by the water mold of Phytophthora infestans, which affects potato and tomato plants.
2. It results in crop failure if certain adaptive measures are not taken.
3. Water-soaked patches, commonly at the tips or edges of lower leaves where water or dew likes to collect, are the first signs of late blight.
4. These lesions quickly spread into huge, dark brown or black lesions in cool, moist weather, and they often appear greasy.
5. A yellow chlorotic halo is frequently seen around leaf lesions.
6. When sporangia from lesions on the plant wash into the soil, potato tubers can become infected in the field.
7. Infections usually start in the pores of the tuber, the eyes, or the lenticels.
8. Copper brown, reddish, or purplish tuber tissues are infected.
9. Late blight is the disease that caused the Irish potato famine of the 1840s.