http://www.syngenta.com/country/pt/pt/informacao_e_servicos/metereologia/Pages/Metereologia.aspx - Weather
http://www.wetterzentrale.de/topkarten/fsavnmgeur.html - Weather
http://www.dgv.min-agricultura.pt/portal/page/portal/DGV - Direcção Geral de Alimentação e Veterinária
http://www.ipm.ucdavis.edu/ - UC DAVIS
http://www.aiho.pt/ - Associação Interprofissional de Horticultura do Oeste
http://www.infoagro.com/ - Spanish Agriculture Information
http://infoagro.cothn.pt/portal/ - Portuguese Agriculture Information
http://www.valorfito.com/ - Packaging Waste
http://www.ifas.ufl.edu/ - Florida University
http://www.ipmimages.org/ - Pests and diseases images
http://www.europotato.org/ - European potato varieties
http://www.oardc.ohio-state.edu/weedworkshop/herbicide.asp - Choose crop and weed problem, automatically shows recomended herbicide
http://www.wetterzentrale.de/topkarten/fsavnmgeur.html - Weather
http://www.dgv.min-agricultura.pt/portal/page/portal/DGV - Direcção Geral de Alimentação e Veterinária
http://www.ipm.ucdavis.edu/ - UC DAVIS
http://www.aiho.pt/ - Associação Interprofissional de Horticultura do Oeste
http://www.infoagro.com/ - Spanish Agriculture Information
http://infoagro.cothn.pt/portal/ - Portuguese Agriculture Information
http://www.valorfito.com/ - Packaging Waste
http://www.ifas.ufl.edu/ - Florida University
http://www.ipmimages.org/ - Pests and diseases images
http://www.europotato.org/ - European potato varieties
http://www.oardc.ohio-state.edu/weedworkshop/herbicide.asp - Choose crop and weed problem, automatically shows recomended herbicide