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Pests, Beneficials, Diseases and Disorders of Mangoes - Northern ...

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Introduction<br />

This illustrated Field Guide gives an introduction to the identification <strong>of</strong><br />

some common pests, beneficials, diseases <strong>and</strong> disorders <strong>of</strong> mangoes<br />

in northern Australia (<strong>Northern</strong> Territory, northern Queensl<strong>and</strong> <strong>and</strong><br />

northern Western Australia). It also includes a description <strong>of</strong> several<br />

beneficial insects <strong>and</strong> spiders, as well as some nutritional <strong>and</strong><br />

physiological conditions that may be confused with pest or disease<br />

symptoms.<br />

The information in the Field Guide is the best available at the time<br />

<strong>of</strong> publication <strong>and</strong> includes some life cycle development times which<br />

have been approximated for NT conditions (these will vary according<br />

to climatic conditions, human influences <strong>and</strong> environmental factors).<br />

Many other insects or mites may be found on mango trees <strong>and</strong>/<br />

or on mango fruit, including some that are <strong>of</strong> minor (or infrequent)<br />

economic importance as well as non-economic species. Growers are<br />

encouraged to be on the lookout for any new or unusual occurrences<br />

<strong>and</strong> to discuss these <strong>and</strong> any other concerns with departmental staff.<br />

How to Use This Field Guide<br />

This publication is divided into four main sections: insect pests, natural<br />

enemies, diseases <strong>and</strong> disorders. A monitoring bar grid has been<br />

provided to show which months the orchard should be monitored<br />

for a particular pest, disease or disorder. Some insects or mites may<br />

occur during the wet season months <strong>of</strong> December to February but<br />

monitoring is not usually essential during that period as trees are not<br />

flushing or producing flowers.<br />

The crucial time for insect monitoring is during the period <strong>of</strong> flushing,<br />

flowering <strong>and</strong> fruit production, which includes the period from March<br />

to November.<br />

A glossary at the back <strong>of</strong> this book has been provided for definitions<br />

<strong>of</strong> scientific terms.<br />

vii<br />

x<br />

Further Information<br />

As this field guide is in pocket notebook format, the information it<br />

contains has been reduced from its original larger format. More<br />

detailed information is available on factsheets or agnotes from the<br />

Department’s website. Telephone enquiries for the <strong>Northern</strong> Territory<br />

can be directed to the field areas listed on the next page.

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