Phytophthora diseases of macadamias

Akinsanmi, Femi and Drenth, André (2013) Phytophthora diseases of macadamias. Australian Nutgrower, 27 3: 15-17.

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Name Description MIMEType Size Downloads
Author Akinsanmi, Femi
Drenth, André
Title Phytophthora diseases of macadamias
Journal name Australian Nutgrower
ISSN 0819-7849
Publication date 2013-09
Sub-type Critical review of research, literature review, critical commentary
Open Access Status
Volume 27
Issue 3
Start page 15
End page 17
Total pages 3
Place of publication Elanora, QLD, Australia
Publisher Australian Nut Industry Council
Language eng
Formatted abstract
Over 120 Phytophthora species infect over 3500 plant species including several tree nuts. Phytophthora is a significant impediment to macadamia production worldwide and it infects almost all parts of the tree including root, leaf, flower, stem and trunk (Table 1). In some cases, a single Phytophthora species can cause different disease symptoms, and different species can also cause the same disease symptoms in macadamia.

Two factors that make Phytophthora a significant threat to macadamia worldwide are:

• the slow progression of some disease symptoms which often leads to the disease being misdiagnosed or overlooked by growers at the early stage of infection, and
• the ability of the disease to rapidly become severe or cause tree death when the tree is under stress or under prolonged conditions that are favourable to the disease

It is estimated that Phytophthora causes production losses of over $8 million annually in Australia; in Kenya yield loss is about 60% (Mbaka et al., 2009) and in Hawaii, about 53% of Phytophthora-infected trees in field conditions were reported to die within seven months after planting (Keith et al., 2010). Similar losses in production may occur in other tree nuts and therefore, mitigating the impacts of Phytophthora diseases requires concerted efforts.
Q-Index Code CX
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collection: School of Agriculture and Food Sciences
 
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Created: Fri, 04 Jul 2014, 09:23:51 EST by Dr Olufemi Akinsanmi on behalf of School of Agriculture and Food Sciences