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| Santana, Dalva Luiz de Queiroz; Zanol, Keti M. R.; Botosso, Paulo Cesar; Mattos, Patricia Póvoa de. |
| The injuries of Ctenarytaina spatulata Taylor, 1977, were characterized through observations in field, laboratory and greenhouse. The first injuries of C. spatulata in Eucalyptus grandis are caused during oviposition. At the point where the egg is inserted, a small black spot appears, which may grow larger, causing the bud death. The insect eliminates large amount of honeydew, accumulating on leaves and apical parts, which starts the proliferation of sooty mold, and fitopathogenic fungi. Leaves of the attacked lants become deformed, smaller than the normal ones, distorted, or with flaws among the ribs and sooty mold reducing the photosynthetic capacity. Due to damages provoked by the bites, oviposition, sooty mold accumulation and other fungi,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest pests; Eucalyptus pests; Exotic pests; Psyllid Pragas florestais; Pragas exóticas; Pragas do eucalipto; Psilídeo.. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/237 |
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| Lichtenberg, Erik; Lynch, Lori. |
| Pest-free status certification is desirable if the demand-side impacts (increased export revenue) and supply-side impacts (lower pest damage and decreased ongoing control costs) exceed the compliance monitoring and eradication costs. Thus, eradication may be optimal without certification. Certification is more likely for regions facing costly treatment requirements (bans) or possessing geographic traits that lower monitoring costs and infestation probabilities than for those exporting higher-valued products. Certification benefits producers but hurts consumers. Thus, political feasibility may be greater if domestic consumption is a small share of the market and if the additional tax burden of certification programs is light. |
| Tipo: Journal Article |
Palavras-chave: Exotic pests; Invasive species; Pest-free area; Eradication; Sanitary/phytosanitary regulations; International Relations/Trade. |
| Ano: 2006 |
URL: http://purl.umn.edu/10182 |
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