gall wasps

Parasites Fight Citrus Gall Wasps

Daniel CooperInternational, Pests

Jianhua Mo, a research entomologist with Australia’s New South Wales Department of Primary Industries (NSW DPI) authored an article about the release of parasitic wasps for the control of citrus gall wasps (CGW). Edited excerpts follow: CGW is a pest of major concern in the southern citrus-growing regions of the Riverina, Sunraysia and Riverland. With the exception of the adult …


Waxing the Right Way

Daniel CooperFresh

An article about citrus waxing was recently published by Citrus Australia. The article, written by John Golding, a research horticulturist with the New South Wales Department of Primary Industries, is summarized here. Waxing citrus can help maintain quality and enhance the fruit’s appearance. However, using the wrong type of wax or applying an excessively thick layer can overly restrict gas …


Australia Seeks Vaccine-Like Solution to CTV

Daniel CooperDiseases, International, Research

Australian scientists are developing a vaccine-like solution to arm citrus growers with an effective way to combat citrus tristeza virus (CTV), a significant challenge for the Australian citrus industry.  The $1.5 million initiative is being delivered through Hort Innovation and collaboratively led by the University of Queensland, the New South Wales Department of Primary Industries (NSW DPI) and Auscitrus. Researchers …

Chinese Rootstocks Show Promise in Australia

Josh McGillInternational, Research, Rootstocks

Preliminary data from an Australian research project suggest Chinese rootstocks No. 24 and 85-24 are having a dwarfing effect on citrus tree growth and will be candidates for future high-density cropping systems. Citrus Australia reported that those rootstocks have strong potential in heavy soils, and that results on deep sandy loam soil are also very encouraging. Tahir Khurshid from the …

Australia Evaluating Dwarfing Rootstocks

Josh McGillInternational, Research, Rootstocks

Tahir Khurshid of Australia’s New South Wales Department of Primary Industries (NSW DPI) is leading a project evaluating several overseas rootstocks budded to a range of mandarin and sweet orange varieties. One of the components is evaluating the rootstocks for their dwarfing effect, which will potentially produce small trees for high-density planting systems for the citrus industry.   Size-controlling rootstocks have …