2002년 농작물 병해 발생개황 = Review of Disease Incidence of Major Crops in 2002

다국어 초록 (Multilingual Abstract)

The year of 2002 was very unusual in climatic condition. Warm winter weather, high temperature and
drought in March and April, little precipitation in June and early and mid-July and, nearly continuous rainfalls
from late July to whole period of August accompanied with low temperature and insufficient sunshine in
2002 resulted in unfavorable conditions for plant growth in one way or another. In relation to the unusual
weather, in general, diseases associated with low temperature, poor radiation and much rainfall occurred
severely in this year. In rice, incidence of bacterial grain rot, and false smut increased sharply, whereas other
major diseases including blast occurred mildly due mainly to the reduced application of nitrogen fertilizer. In
vegetables, potato and sweet potato, and fruit trees, incidence of diseases was largely dependent on climatic
condition of growth period in particular crops. However, diseases favored low temperature and much rainfall,
such as Phytophthora disease increased markedly compared to those of normal years, while anthracnose and
soft rot tended to decrease significantly.