<![CDATA[The high accessibility of potato imports increases the risk of carrying quarantine plant pest organisms. Characterization of pathogenic fungi on potato seedlings is not only identified visually. Several tests need to be carried out to get accurate results. The blotter test method has become the standard for testing seeds for the Animal, Fish, and Plant Quarantine Center because it is practical, does not require complicated and expensive laboratory equipment, and fungi can be identified effectively. The problem formulation of this research is how the characterization results of potato seed commodities imported from Australia in July 2023 can ensure that the commodities are free from pathogenic fungi. Characterizing imported potato seeds aims to reduce the risk of spreading pathogenic fungi Helminthosporium solani that can harm the agricultural sector. Characterization using the blotter test method goes through 4 stages, 1) sample preparation, 2) sample sterilization, 3) sample incubation, and 4) observation and identification. The characterization results showed that pathogenic fungi were not found in imported potato seed samples from Australia. The fungus found was the species Cephalotrichum brevistipitatum, which is an endophytic fungus, not Helminthosporium solani. The results of this characterization imply that the Animal, Fish, and Plant Quarantine Center released the potato seeds and allowed them to enter Indonesian territory.]]>
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