Centuries: 5th century - 6th century - 7th century
Decades: 450s - 460s - 470s - 480s - 490s - 500s - 510s - 520s - 530s - 540s - 550s
Years: 503 504 505 506 507 508 509 510 511 512 513
... (IPM) is an array of complementary methods of managing pests by using natural predators, parasite, pest-resistant varieties (see GMO), pesticides, cultural ...
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