Effect of diameter of the cotton squares in the development of boll weevil (1).

O objetivo deste trabalho foi estudar o efeito do diâmetro dos botões florais de algodoeiro na massa corporal de adultos do bicudo-do-algodoeiro, Anthonomus grandis Boheman (Coleoptera: Curculionidae). O experimento foi realizado em condições de campo e laboratório, em Jaboticabal (SP), Brasil. Foram realizadas seis amostragens, coletando-se ao acaso dez plantas nas cultivares Coodetec 405 e Fibermax 986, avaliando-se o número e o diâmetro de botões florais..

Monitoramento para detecção de Ceratitis capitata (Diptera: Tephritidae) no Estado do Amapá.

bitstream/item/62612/1/AP-2012-Monitoramento-deteccao-Ceratitis-capitata.pd

Rapid and accurate simultaneous determination of abamectin and ivermectin in bovine milk by high performance liquid chromatography with fluorescence detection

An analytical method using high performance liquid chromatography with fluorescence detection for the simultaneous determination of abamectin and ivermectin in bovine milk was developed and validated. The best recovery results were achieved by using acetonitrile for extraction of the compounds followed by solid phase extraction in cartridges containing C18 for the purification of the extract. Pre-column derivatization was accomplished with N-methylimidazole and trifluoroacetic anhydride. The method limit of detection (LOD) values for abamectin and ivermectin were 0.10 and 0.14 µg L-1 and the limit of quantification (LOQ) values were 0.18 and 0.36 µg L-1, respectively. The recoveries were from 75 to 101%, with RSD values lower than 10%. The LOD and LOQ values are lower than the maximum residue limits (MRLs) in milk established by Codex Alimentarius, European Union and the Brazilian legislation

Parasitoids of Anastrepha spp. in the Brazilian Amazon.

The database "Parasitoids of Anastrepha in the Brazilian Amazon" provides easy and accessible information on species of parasitoids of Anastrepha spp. and their geographic distribution in the Brazilian Amazon, which includes the states of Acre, Amapá, Amazonas, Mato Grosso, Pará, Rondônia, Roraima, Tocantins and Maranhão. The database was developed with free software tools, includes a map viewer using the Google Maps API and is available for public access on the Embrapa Amapá website or directly at http://parasitoid.cpafap.embrapa.br. Its data were sourced from the existing technical and scientific literature. Parasitoid species occurrence, the associated host plants and geographic distribution data were included in the database, with the respective bibliographic references. The database will be updated regularly to add newly published data. From the main page, the occurrence reports for a given parasitoid can be searched using filters. The results are presented in both table and map format, in which the geographic distribution and original bibliographic reference can be viewed. More than 400 entries were compiled, each corresponding to the occurrence of a parasitoid species in a given location. Twelve species occur in the region, including eight Braconidae [Asobara anastrephae (Muesebeck), Doryctobracon areolatus (Szépligeti), Doryctobracon brasiliensis (Szépligeti), Doryctobracon crawfordi (Viereck), Doryctobracon sp. 1, Doryctobracon sp. 2, Opius bellus Gahan, and Utetes anastrephae (Viereck)] and four Figitidae [Aganaspis nordlanderi Wharton, Aganaspis pelleranoi (Brèthes), Odontosema albinerve Kieffer, and Tropideucoila rufipes Ashmead]. Doryctobracon areolatus and O. bellus are the most abundant and widely distributed species. The plant species Spondias mombin L. (Anacardiaceae), Geissospermum argenteum Woodson (Apocynaceae) and Bellucia egensis (Mart. ex DC.) Penneys, F.A. Michelangeli, Judd and Almeda (Melastomataceae) are the most notable "multipliers" of parasitoid species