In the Sunraysia, Riverland, and Riverina districts, almond growers are advised to prepare for the hull split period between December and January to manage key pests effectively. Sumitomo Chemical Australia's regional manager for Victoria and Riverina, Frank Galluccio, highlighted the importance of early intervention against the carpophilus beetle and carob moth, which pose threats to the crop during this critical phase. Galluccio recommended the use of Sumitomo's insecticide, Samurai, for treating both pests promptly as they emerge, typically around three months before the summer-autumn harvest. The hull split, marking a vital stage in almond development, exposes the nut to potential pest damage, affecting marketability and yield.
Galluccio underscored the risk of inaction, which could lead to a significant portion of the crop becoming unsuitable for the export market. He advised applying Samurai at the onset of hull split and again at 40% hull split, with intervals of four to five weeks, followed by another application two to three weeks before harvest. Additionally, Galluccio mentioned the effectiveness of Samurai in controlling other pests in various tree crops and highlighted the use of another product, ParaMite, from Sumitomo's range for managing mite species such as bryobia and two-spotted mites.
ParaMite, an insect growth regulator, is recommended for early application to prevent mite infestation, with careful monitoring and rotation with other products to avoid resistance. Galluccio emphasized the necessity for growers to be vigilant, monitor pest activity, and communicate their needs to chemical dealers timely. Australian almond production spans from the Riverina region to Sunraysia, Riverland, Northern Adelaide Plains, and the Swan region in Western Australia, requiring specific climatic conditions for optimal growth.
Source: Tree Crop