scholarly journals Current Status of Acarapis woodi Mite Infestation in Africanized Honey Bee Apis mellifera in Brazil

2020 ◽  
Vol 102 (4) ◽  
pp. 775
Author(s):  
Carine Mascena Peixoto ◽  
Maria Emilene Correia-Oliveira ◽  
Carlos Alfredo Lopes de Carvalho
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Mite Infestation ◽  
Current Status ◽  
Acarapis Woodi ◽  
Africanized Honey Bee

scholarly journals Mitochondrial DNA Variation in Peruvian Honey Bee (Apis mellifera L.) Populations Using the tRNAleu-cox2 Intergenic Region

Insects ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 641
Author(s):  
Julio Chávez-Galarza ◽  
Ruth López-Montañez ◽  
Alejandra Jiménez ◽  
Rubén Ferro-Mauricio ◽  
Juan Oré ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Honey Bee ◽  
Intergenic Region ◽  
Current Status ◽  
Dna Variation ◽  
Africanized Honey Bee ◽  
Dna Variations ◽  
The 19Th Century ◽  
Bee Colonies

Mitochondrial DNA variations of Peruvian honey bee populations were surveyed by using the tRNAleu-cox2 intergenic region. Only two studies have characterized these populations, indicating the presence of Africanized honey bee colonies in different regions of Peru and varied levels of Africanization, but the current status of its genetic diversity is unknown. A total of 512 honey bee colonies were sampled from three regions to characterize them. Our results revealed the presence of European and African haplotypes: the African haplotypes identified belong to sub-lineage AI (13) and sub-lineage AIII (03), and the European haplotypes to lineages C (06) and M (02). Of 24 haplotypes identified, 15 new sequences are reported here (11 sub-lineage AI, 2 sub-lineage AIII, and 2 lineage M). Peruvian honey bee populations presented a higher proportion from African than European haplotypes. High proportions of African haplotype were reported for Piura and Junín, unlike Lima, which showed more European haplotypes from lineage C. Few colonies belonging to lineage M would represent accidental purchase or traces of the introduction into Peru in the 19th century.

High-resolution (mtDNA) melting analysis for simple and efficient characterization of Africanized honey bee Apis mellifera (Hymenoptera:Apidae)

Genetica ◽  
2021 ◽  
Author(s):  
Leonardo P. Porrini ◽  
Constanza Brasesco ◽  
Matias Maggi ◽  
Martín J. Eguaras ◽  
Silvina Quintana
Keyword(s):  
Apis Mellifera ◽  
High Resolution ◽  
Honey Bee ◽  
Africanized Honey Bee ◽  
Melting Analysis

scholarly journals Varroa jacobsoni infestation of adult Africanized and Italian honey bees (Apis mellifera) in mixed colonies in Brazil

1999 ◽  
Vol 22 (3) ◽  
pp. 321-323 ◽  
Author(s):  
Geraldo Moretto ◽  
Leonidas João de Mello Jr.
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Honey Bees ◽  
Mite Infestation ◽  
Varroa Jacobsoni ◽  
Africanized Honey Bees ◽  
African Honey Bees ◽  
Africanized Bees ◽  
Bee Colonies ◽  
Different Levels

Different levels of infestation with the mite Varroa jacobsoni have been observed in the various Apis mellifera races. In general, bees of European races are more susceptible to the mite than African honey bees and their hybrids. In Brazil honey bee colonies are not treated against the mite, though apparently both climate and bee race influence the mite infestation. Six mixed colonies were made with Italian and Africanized honey bees. The percentage infestation by this parasite was found to be significantly lower in adult Africanized (1.69 ± 0.44) than Italian bees (2.79 ± 0.65). This ratio was similar to that found in Mexico, even though the Africanized bees tested there had not been in contact with varroa, compared to more than 20 years of the coexistence in Brazil. However, mean mite infestation in Brazil on both kinds of bees was only about a third of that found in Mexico.

scholarly journals In vitro effects of thiamethoxam on larvae of Africanized honey bee Apis mellifera (Hymenoptera: Apidae)

Chemosphere ◽  
2015 ◽  
Vol 135 ◽  
pp. 370-378 ◽  
Author(s):  
Daiana Antonia Tavares ◽  
Thaisa Cristina Roat ◽  
Stephan Malfitano Carvalho ◽  
Elaine Cristina Mathias Silva-Zacarin ◽  
Osmar Malaspina
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Africanized Honey Bee ◽  
In Vitro Effects

The prevalence of Acarapis woodi in Spanish honey bee (Apis mellifera) colonies

2012 ◽  
Vol 132 (4) ◽  
pp. 530-536 ◽  
Author(s):  
Encarna Garrido-Bailón ◽  
Carolina Bartolomé ◽  
Lourdes Prieto ◽  
Cristina Botías ◽  
Amparo Martínez-Salvador ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Acarapis Woodi

scholarly journals Effect of different Bacillus thuringiensis strains on the longevity of Africanized honey bee

2018 ◽  
Vol 39 (1) ◽  
pp. 329 ◽  
Author(s):  
Gabriela Libardoni ◽  
Alfredo De Gouvea ◽  
Fabiana Martins Costa-Maia ◽  
Everton Ricardi Lozano ◽  
Patrícia Franchi de Freitas ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Bacillus Thuringiensis ◽  
Honey Bee ◽  
Histological Analysis ◽  
Africanized Honey Bee ◽  
Contact Test

The aim of this study was to assess the effects of three strains of Bacillus thuringiensis (Bt) on the longevity of workers of Africanized honey bee. Solutions at a concentration of 3 × 108 spores.mL-1 (dosage) were prepared for each strain of Bt (IPS 82, BR 81, and BR 147). Three bioassays were performed as follows: spraying on the bees, contact with the sprayed surface, and candy paste incorporated with Bt. The bees of the Bt bioassay were submitted to histological analysis of the mesenteron. The longevity of workers was assessed from one to 120 hours using different ranges. It was found that the bees that were exposed to the strain of Bt IPS 82, in the spraying test, exhibited a reduced longevity. In the contact test, the BR 147 strain reduced the longevity of the bees. In the food test, in turn, the three studied strains reduced the longevity of the bees as follows: Bt IPS 82: 64.5 hours; Bt BR 81: 64.5 hours; and Bt BR 147: 60.0 hours. The Bt BR 81 strain was considered the most selective of the evaluated strains on Apis mellifera, reducing the longevity of this bee only when it came into contact by the method of ingestion.

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