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Los cicadelidos (Cicadellidae) se encuentran entre las plagas que afectan el cultivo de arandano (Vaccinium spp.) en el mundo. Causan danos por succion de nutrimentos, obstruccion del flujo vascular, y por la transmision de fitopatogenos causales de enfermedades. A pesar del dano potencial que pueden causar no hay reportes de su presencia en Mexico, lo cual es esencial para planear estrategias de manejo. El objetivo de este estudio fue determinar las especies y abundancia estacional de los cicadelidos asociados a plantaciones comerciales de arandano, en Jalisco, Mexico. Los cicadelidos fueron colectados con trampas amarillas, cada dos semanas, en el periodo de abril de 2018 a abril de 2019. Se obtuvieron 6,236 especimenes que representan a ocho subfamilias, 21 tribus, 45 generos, y 40 especies de Cicadellidae. En subfamilias Deltocephalinae y Cicadellinae se concentro el mayor numero de especies. Empoasca aracoma, Dalbulus maidis, Scaphytopius nitridus, Agallia quadripunctata, Balclutha incisa, Graminella sonora, Xestocephalus desertorum, y Planicephalus flavicosta fueron las especies mas abundantes. La mayor abundancia de cicadelidos se registro en febrero - marzo y octubre - noviembre que coincide con los periodos de fructificacion y floracion. No hubo correlacion entre la densidad poblacional y los aspectos climaticos analizados, pero se observo una tendencia a una mayor densidad en los meses mas calidos y secos.

The large grain borer, Prostephanus truncatus Horn, is a primary insect pest that reduces the quality and yield potential of stored cacahuacintle maize (Zea mays L.) in Mexico. Using external morphology to determine the sex of adults of the species is difficult. Digital images of 103 P. truncatus adults were processed, and the body length, abdomen length, abdomen width, and distance between clypeal tubercles were recorded from least to greatest according to the distance between clypeal tubercles. The sex of 10 insects of each of small (81.768-109.202 µm), medium (124.896-127.325 µm), and large sizes (143.668-186.901 µm) (16 males and 14 females) was corroborated by extraction of the genitalia. The dimensions were related to the sex of the insect. All small-sized insects were males, the medium-size category had 60% females and 40% males, and the large-size category was 100% female. Females had significantly greater body length (F1,30 = 8.67, P = 0.0062), abdomen length (F1,30 = 10.32, P = 0.0031), abdomen width (F1,28 = 2.02, P = 0.1659), and the distance between clypeal tubercles (F1,30 = 45.66, P < 0.0001) than did males. This complements the precision by other authors who determined the sex of adults of P. truncatus.

The spotted wing drosophila, Drosophila suzukii Matsumura, affects berry (Fragaria L., Rubus L., and Vaccinium L.) production and is under official mitigation and surveillance in Mexico. To obtain biological information about the pest, a sample of six adult males and six adult females from CNRF breeding (Colima, Mexico) was studied. PCR was used to amplify regions of the X chromosome. Six markers (FBgn0001083, FBgn0017651, FBgn0026206, FBgn0029789, FBgn0029997, and FBgn0030437) were identified and their sequences were processed with different bioinformatic systems to build a network of haplotypes associated with their geographical distribution. The sequenced markers had similarities with those from populations in the United States (Florida, Georgia, Hawaii, and Massachusetts) and Japan.