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Books > Science & Mathematics > Biology, life sciences > Botany & plant sciences > Plant pathology & diseases
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Biological Control (Paperback, 1971 ed.)
Loot Price: R1,663
Discovery Miles 16 630
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Biological Control (Paperback, 1971 ed.)
Expected to ship within 10 - 15 working days
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The explosive increase in the world's human population, with conse
quent need to feed an ever-increasing number of hungry mouths, and
the largely resultant disturbances and pollution of the environment
in which man must live and produce the things he needs, are forcing
him to search for means of solving the first problem without
intensifying the latter. Food production requires adequate
assurance against the ravages of insects. In the last three decades
short-sighted, unilateral and almost exclusive employment of
synthesized chemicals for insect pest control has posed an enormous
and as yet unfathomed contribution to the degradation of our
environment, while our insect pest problems seem greater than ever.
Properly viewed, pest control is basically a question of applied
ecology, yet its practice has long been conducted with little
regard to real necessity for control, and in some cases, with
little regard to various detrimental side-effects or long-term
advantage with respect, even, to the specific crop itself. This
book deals fundamentally with these questions. The development of
pesticide resistance in many of the target species, against which
the pesticides are directed, has occasioned an ever-increasing load
of applications and complexes of different kinds of highly toxic
materials. This has been made even more "necessary" as the
destruction of natural enemies has resulted, as a side effect, in
the rise to pest status of many species that were formerly
innocuous. The application of broad-spec trum pesticides thus has
many serious and self-defeating features.
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