We have three large puka’s in a tropical style garden, all about 3-4m high. One in particular has lost a lot of leaves, even some new ones are dying. Black spots on the underside and curling of some of the newer ones. Presume it is a fungal infection. For such large trees what are the options for a systemic fungicide. Also a lot of healthy large fern & palm species in the same area and grasses/bromeliads. Mulching, water, sheep pellets all done.
- Palmers asked 7 years ago
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What you are describing sounds indeed like a fungus on the leaves. This is most active in moist conditions. They also do not like wet feet so check if water is pooling or not draining from that area the Pukas are planted. Pick off and destroy the infected leaves to stop the spread of fungus. Water soil, not leaves. You can apply a copper fungicide. One of the easiest to mix and spray is Yates Fungus Fighter.
- Palmers answered 7 years ago
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