In March 2020, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. At the genus rank, 20 new genera were added, two were deleted, one was moved, and three were renamed. At the species rank, 160 species were added, four were deleted, ten were moved and renamed, and 30 species were renamed. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV.

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The sex pheromone of the pistachio twig borer, Kermania pistaciella (Lepidoptera: Oinophilidae), one of the most important insect pests of pistachio, Pistacia vera, in Turkey and Iran, was identified. In gas chromatographic-electroantennographic detection (GC-EAD) and GC-mass spectrometric analyses of pheromone gland extracts of female K. pistaciella from Turkey, (2S,12Z)-2-acetoxy-12-heptadecene was identified as the major candidate pheromone component. In field experiments in Turkey, lures containing synthetic (2S,12Z)-2-acetoxy-12-heptadecene attracted large numbers of male moths. Its attractiveness was significantly reduced by the presence of the R-enantiomer or of either enantiomer of the corresponding alcohol. (2S,12Z)-2-Acetoxy-12-heptadecene is the first pheromone component identified in the Oinophilidae and the first secondary acetate pheromone component identified in the Lepidoptera.

This study was carried out on Uzun and Siirt pistachio cultivars present at the Pistachio Research Institute orchards. After the most suitable pruning, fertilization and irrigation practices, different plant growth regulators were sprayed on entire trees at the different doses, and effects of plant growth regulators on alternate bearing were investigated. In the study, 10, 25 and 50 ppm 1-Naphthaleneacetic acid (NAA), 25 ppm Nbenzyl-9-(2-tetra-hydropyranyl) adenine (BA) and 0.25% urea were used, and 0.25% urea was added to all plant growth regulators' doses. Plant growth regulators were sprayed to the fruits, buds and leaves to the point of drip. Applications were done two times in year. First application was done at starting kernel development, and second application was done 20 days after the first application. According to the results, the highest yield was obtained from 25 ppm benzyladenine + 0.25% urea in Uzun (4.98 kg per tree) and 47.29% of inflorescence buds retained in this application. The lowest yield was obtained from control as 4.05 kg per tree and 47.56% of inflorescence buds retained in control. At the Siirt, the highest yield (8.26 kg per tree) was obtained from 0.25% urea application and 51.58% of inflorescence buds retained in this application. The lowest yield was obtained from 50 ppm naphthalene acetic acid application (5.16 kg per tree) and 58.49% of inflorescence buds retained in this application. At the Siirt , 5.53 kg yield per tree was obtained from control and 6.01 kg per tree obtained from 25 ppm benzyladenine + 0.25% urea.

Two seed wasps, Eurytoma plotnikovi Nikol'skaya.