Adipokinetic hormones (AKH) are synthesized in endocrine cells of the glandular corpora cardiaca, in the anterior part of the retrocerebral complex. AKH plays an important role in the metabolism of carbohydrates that fuel energydepleting activities such as flight and walking. To date, the primary sequences of eight isoforms from various beetle species have been elucidated. In this study, the gl...

The toxicity of 2 reduced-risk pesticides, 2% horticultural oil with 0.05% Silwet L-77 and Grandevo (Chromobacterium subtsugae Strain PRAA4-1T), to 2 predators: Metaseiulus occidentalis (Nesbitt) (Acari: Phytoseiidae) and Hemicheyletia wellsina DeLeon (Acari: Cheyletidae), and 3 orchid pests: the two-spotted spider mite Tetranychus urticae Koch (Prostigmata: Tetranychidae), the phalaenopsis mit...

Pineapple, Ananas comosus (L.) Merr., is a perennial, xerophytic monocot in the Bromeliaceae family (13). Planting materials used for commercial production are typically the crown from the top of the fruits (19). The planted crowns, referred to as the plant crop, will each produce a single pineapple fruit 18 to 20 months after planting (19). Following plant crop harvest, a ratoon crop develops ...

S. Afr. J. Enol. Vitic., Vol. 36, No. 2, 2015 Corresponding author: E-mail address: [email protected] Acknowledgements: The author wishes to thank Levocia Williams and Lydia Maart of the Pest Management Division at the ARC Infruitec-Nietvoorbij for technical assistance, and Marika van der Merwe and Elize Jooste of the ARC-Plant Protection Research Institute for the PCR analyses. Funding for...