Preferência de Apanteles galleriae Wilkinson (Hymenoptera: Braconidae) por Galleria mellonella (L.) ou Achroia grisella (Fabricius) (Lepidoptera: Pyralidae)

Abstract

Host Preference of Apanteles galleriae Wilkinson (Hymenoptera: Braconidae) for Galleria mellonella (L.) or Achroia grisella (Fabricius) (Lepidoptera: Pyralidae)ABSTRACT -Caterpillars of Galleria mellonella (L.) and Achroia grisella (Fabricius), considered pests of beehives, were used to test host preference of the parasitoid Apanteles galleriae Wilkinson. On average, A. galleriae females originated from a lab rearing on both hosts preferred to parasitize caterpillars of A. grisella in 67% of the tests. The same experiment was repeated using A. galleriae females that had been reared during five generations in each of the host species, with similar results. A. galleriae females reared in caterpillars of G. mellonella parasitized A. grisella caterpillars in 64% of the tests, whereas the A. galleriae females reared in A. grisella parasitized the same species in 63.5% of the tests. This preference was not dependent on the number of host caterpillars used in each test. We conclude that A. grisella is a better host than G. mellonella to rear A. galleriae under laboratory conditions, and that the parasitoid is a promising natural enemy for the biological control of these species of wax moths because it can be easily reared in both species and none of these hosts show resistance to the parasitoid.

Tetrastichus howardi (Hymenoptera: Eulophidae): first report of parasitism in Oxydia vesulia (Lepidoptera: Geometridae)

“…The parasitoid T. diatraeae produced 868 parasitoids per pupae of the host Spodoptera cosmioides Walker (Lepidoptera: Noctuidae) (Zaché et al, 2012). The sex ratio of T. howardi, with a predominance of females, may increase the efficiency of this parasitoid in the biological control, since they are responsible for parasitism and host control (Cañete and Foerster 2003;Zacarin et al, 2004).…”

Avaliação da eficácia de agentes fí­sicos e químicos contra biofilmes produzidos por clones de bactérias multirresistentes de importância clínica e epidemiológica no Brasil

“…armazenados nos favos das colmeias, esse invertebrado tem sido considerado uma praga para a apicultura, sendo considerada a segunda maior causa de prejuízo econômico para a indústria de mel(KWADHA et al , 2017;VILCINSKAS, 2016;CHANTAWANNAKUL et al, 2016;PIRK et al, 2015;ZACARIN et al, 2004). 5B) e seu peso pode dobrar diariamente nos dez primeiros dias; iii) pupa, onde a larva tece um casulo de seda e apresenta coloração amarelo-avermelhado, com tamanho entre 2-4mm de largura e 8-12mm de comprimento; iv) adulta, onde cada mariposa apresenta cerca de uma semana de longevidade.…”