Los insectos asociados a productos almacenados dañan una amplia variedad de alimentos en hogares y expendios, provocando baja calidad nutricional e incluso riesgo la salud los consumidores. El objetivo este estudio fue determinar las especies abundancia secos casas tiendas abarrotes ciudad Culiacán, Sinaloa. Se obtuvieron alimenticios, o abarrotes, con indicios daños por presencia mismos, cuale...

Stored-product insects are a perennial problem in retail stores, where they damage and contaminate susceptible merchandise such as food products and animal feed. Historically, pest management in these stores has relied heavily on chemical insecticides, but environmental and health issues have dictated use of safer methods, and these require better monitoring. A monitoring procedure that employs...

Two cDNA fragments encoding full-length trypsinogen-like proteins were cloned from larvae of two strains (RC688s and HD198r) of the Indianmeal moth, Plodia interpunctella (Hübner), which differed in their sensitivity to Bacillus thuringiensis protoxins. One cDNA fragment contained 874 nucleotides, including a 780-nucleotide open reading frame that encoded a trypsinogen-like protein (PiT2b). Ano...

Wandering-phase ®fth instar Plodia interpuntella (HuÈ bner) were exposed at 3-week intervals for 0.5, 1, 2, and 4 h on concrete treated with sprays of 100, 150, and 200 mg 20% cy ̄uthrin wettable powder (WP) per m over a 15-week period. Pupation rate and adult emergence were not signi®cantly di€erent (Pr0.05) with respect to exposure interval at any application rate. Of the larvae exposed at wee...

Vitellin (Vt) was found not to be critical to the formation or structure of yolk spheres in oocytes of the moth, Plodia interpunctella (Hubner). Vitellogenic activities of the follicular tissues were determined by visualizing the immunocytolocalization of Vt subunits (YP1 and YP3) and of a follicular epithelium yollc protein (FEYP) subunit (YP2) in ultrathin sections or in whole-mounted tissues...

Percentage survivorship, developmental time, adult body length, and sex ratio of Plodia interpunctella (Hübner) reared on field-produced grain from sixteen cultivars of maize, Zea mays L., including several transgenic Bacillus thuringiensis (Bt) Berliner hybrids and selected non-Bt isolines, were evaluated under laboratory conditions. Compared with isolines, development was delayed and survivor...