This book is a thematic paper which analyses the effect of damaging pests and diseases on forest plantations, vs mixed species natural forests. The basic ecological concept of diversity leading toward stability in ecosystems would lead to the conclusion that mixed species, natural forests are less susceptible to pests and disease than single species plantations. However, both natural forests and plantations are known to be adversely affected by these agents. Case histories of pest occurrence in both exotic and indigenous species plantations are given as well as case histories of introduced vs. indigenous pests. The most frequently encountered situation is when plantations of exotic tree species are attacked by accidentally introduced pests or disease. Both natural and plantation forests should be managed with the objective of keeping them in a healthy, productive condition, one in which pests and disease are kept at low levels and do not interfere with management objectives. Integrated pest management provides a framework of decision-making and action tools designed to maintain and improve forest health.

Type of Case
Printed publication (book, sourcebook, journal article…)

Publisher
FAO

Region
Global

Biome
Temperate, Tropical

Forest Type
All forest types (natural and planted)

Primary Designated Function
All