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Os pesticidas botânicos e os seus efeitos entomológicos
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ISBN10: 6208055482
ISBN13: 9786208055486
Publisher: Edicoes Nosso Conhecimento
Published: Sep 5 2024
Pages: 120
Weight: 0.41
Height: 0.28 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786208055486
Publisher: Edicoes Nosso Conhecimento
Published: Sep 5 2024
Pages: 120
Weight: 0.41
Height: 0.28 Width: 6.00 Depth: 9.00
Language: Portuguese
O aumento da procura de alimentos para alimentar uma população em constante crescimento levou ao desenvolvimento e à adoção de produtos quÃmicos sintéticos como estratégia rápida e eficaz de gestão das pragas e doenças das culturas. No entanto, a dependência excessiva de pesticidas sintéticos é desencorajada devido aos seus efeitos prejudiciais para a saúde humana e o ambiente e ao desenvolvimento de estirpes resistentes de pragas e agentes patogénicos. Este facto, associado à procura crescente de alimentos produzidos segundo o modo de produção biológico, estimulou a procura de abordagens alternativas e os pesticidas botânicos estão a ganhar particular importância. Os pesticidas botânicos são eficazes na gestão de diferentes pragas das culturas, são baratos, facilmente biodegradáveis, têm modos de ação variados, as suas fontes estão facilmente disponÃveis e têm baixa toxicidade para os organismos não visados. Os seus modos de ação variados são atribuÃdos à composição fitoquÃmica das diferentes plantas. Por conseguinte, podem ser incorporados em sistemas integrados de gestão de pragas e contribuir para uma produção agrÃcola sustentável. No entanto, os pesticidas botânicos ainda não foram totalmente adoptados devido a desafios na formulação e comercialização, atribuÃdos à falta de dados quÃmicos e de controlos positivos
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