YouTube video by Adam Mockler

YouTube video by Lipps Service

Learn what HLVd is, its effects on plants, and effective strategies for managing its presence to ensure healthy, thriving crops.

Imported cannabis plants could soon be tested for one of its most destructive pathogens under new processes being explored by the government.

YouTube video by Adam Mockler

Austranna and Biortica Agrimed have settled their legal tussle over an outbreak of Hop Latent Viroid at Green Farmers cultivation facility.

Germany is worldwide one of the largest hop (Humulus lupulus L.) producers, an essential crop for the brewing industry. However, infections caused by viruses and viroids can severely impact hop yield and quality. In 2019, citrus bark cracking viroid (CBCVd) – a highly aggressive pathogen in hop – was first reported in Germany, raising concerns about its spread and prompting a broader investigation of the German hop virome.To investigate the viro-diversity in German hops, we started with a pilot study in 2021 targeting three hopyards in the Hallertau region (Bavaria), where CBCVd was previously detected. This study was expanded in 2022 and 2023 to include other main hop growing regions of Tettnang (Baden-Wuerttemberg) and Elbe-Saale (Saxony, Saxony-Anhalt, Thuringia). Leaf samples were collected from hop as well as non-hop plants inside and outside the hopyard, pooled, and proceeded for double-stranded RNAs extraction. High-throughput sequencing (HTS) was used as a diagnostic tool, followed by RT-PCR confirmation. Our analysis identified four viruses infecting hops; hop latent virus (HpLV), hop mosaic virus (HpMV), apple mosaic virus (ApMV), arabis mosaic virus (ArMV) – and two viroids; hop latent viroid (HLVd) and CBCVd. HpLV, HpMV, and HLVd were consistently found across all targeted hopyards, while CBCVd was confined to the Hallertau region. ArMV was only detected in one hopyard at one sampling timepoint. ApMV was the only virus detected in both hop and non-hop plants. Additional analysis of hop pool datasets revealed the presence of other potential hop pathogens, i.e., fungi and bacteria. The results showed a low diversity of viruses and viroids infecting hops. However, this study provides a comprehensive overview on the major viruses and viroids in German hopyards. The results may serve as a useful resource for the development of disease management strategies in hop cultivation and highlight the valuable implementation of HTS in plant pathogen surveillance.

YouTube video by Adam Mockler

YouTube video by Adam Mockler

Hop latent viroid (HLVd) is the biggest concern for cannabis and hop growers worldwide. Although most HLVd-infected plants remain asymptomatic, research on hops has demonstrated a decrease in both the...

Biortica Agrimed and Austranna will renew attempts to settle a legal dispute next month over an outbreak of HLVd at Green Farmers facility.

Goal is to provide information to growers on this disease of concern.

Increased farming and cultivation of Cannabis sativa is rapidly pushing Cannabis (Cannabis sativa L.

Increased farming and cultivation of Cannabis sativa is rapidly pushing Cannabis (Cannabis sativa L.

HLVd is a pressing issue in the cannabis industry but isn’t the only pathogen that can harm your crop. Here, Ken Morrow answers how you can protect your clean crop from viruses and viroid infection.

Mit diesem Testkit können die folgenden Krankheitserreger nachgewiesen werden: Hopfenlatervirus (HLVd), Cannabis Cryptic Virus (CCV), Alfalfa Mosaic Virus (AMV), Tabakmosaikvirus (TMV), Salatchlorosevirus (LCV). Der Test wird nur für einen der Erreger durchgeführt, den Sie selbst auswählen müssen.