Relationship of weather factors on the progress of shallot moler disease in Brebes, Central Java in the rainy and dry seasons: intensity increases in humid and warm air

Abstract

Shallots are one of the important commodities in Indonesia. One of the obstacles in the production of shallots is the existence of moler disease caused by Fusarium oxysporum f.sp. cepae (FOCe). This pathogen is capable of causing damage to crops and causing losses to crop failure. Changes in weather and global warming can affect the progress of the disease. This manuscript reports the results of observing the progress of moler disease in Brebes, Central Java, in two planting seasons of shallots, dry and rainy, in 2021. The results show that the progress of moler disease intensity in the rainy season is more conducive than in the dry season. Presumably, the factors of temperature and relative humidity of the air show the most influence on the progress of moler disease intensity compared to other weather factors such as rainfall and light intensity.