NVENTARISASI PENYAKIT PADA TEGAKAN NYATOH (Palaquium Obtusifolium Burck) Di DESA ENU KACAMATAN SINDUE KABUPATEN DONGGALA

Nyatoh (Palaquium obtusifolium Burck) is a type of plant native to Indonesia that grows on marshy
soil and on dry land with an altitude of 20-500 m above sea level. This plant has a fairly high ecological
and economic value. The ecological value in question is to function for soil and water conservation,
while the economic value is that the wood products produced have a fairly high selling price in the
market.This research was carried out for 3 months starting from October to January 2023, located in
Enu Village, Sindue District, Dongala regency, Central Sulawesi province. This study uses purposive
sampling method with a land area of 2,640 m2 with a total of 220 trees, data collection only on trees
that have a diameter of >20cm and observe the symptoms of disease found in nyatoh. The results showed
that the disease in Nyatoh stands caused by 2 types of stem cancer caused by the fungus Verticillum sp.
and Ceratocysti sp with symptoms on the stem in the form of black spots from the base up and then found
the fungus on the skin peeled off. Leaf spot disease caused by the fungus Phomopsis sp. As well as leaf
blight disease caused by fungi Phytopthora sp with symptoms of blackish brown spots on the periphery
of the leaves and over time spread and then the leaves will become wilted. The condition of the stands
in Enu Village, Sindue District, Donggala Regency is included in the moderate damage criteria with an
average attack frequency of 82.6% and attack intensity of 39.6%.