The Slovenian Institute of Hop Research and Brewing has prepared the List of Plant Protection Products (PPPs) which allowed for use in Slovenian hop gardens in the year 2025. The list includes all PPPs that are allowed for use on hops in Slovenia and have known maximum residue limits for PPPs on hops in Europe, the United States, and Japan. When using specific PPPs, strictly follow the instructions for use, which include the dosages, the maximum number of sprayings per year, the waiting period, and safety distances from water sources. If possible, based on the mode of action of the active substance listed in the third column of each table (FRAC/IRAC classification), choose a different active ingredient/product than the one used in the previous year. This is good for an anti-resistance strategy.
For PPPs with a safety distance greater than 20 meters, you can appropriately reduce the safety distance according to the decision on the registration of the individual PPP. You can achieve this by using Agrotop TD nozzles that reduce drift by 90%, applying the PPP correctly along the edges of plots, where you use a one-sided air barrier of the fan, and considering the weather conditions during spraying.
It is also necessary to strictly follow the Regulation on the proper use of PPPs (Official Gazette of the Republic of Slovenia, No. 71/14, 28/18, 56/22 and 155/22), the Regulation on integrated plant protection against harmful organisms (Official Gazette of the Republic of Slovenia, No. 43/14), and the Regulation on the requirements for the proper functioning of devices for applying PPPs and the conditions and methods of their inspections (Official Gazette of the Republic of Slovenia, No. 101/13, and 36/19). We recommend that you consult with your hop buyer about any additional restrictions before using PPPs on hops.
This year, three fungicides have been added to the list of approved plant protection products (PPPs) for hop protection in Slovenia. These include Folpan Gold and Orondis EVO, both systemic fungicides for controlling secondary infections of hop downy mildew, as well as Luna Sensation, a systemic fungicide for controlling hop powdery mildew. Additionally, two limacicides, Ferrocious and Hierro, have been included in the list.
However, we are facing many restrictions on certain active substances due to the lack of known export tolerances or maximum residue limits (MRLs) for specific global markets where hops are exported. The insecticide Exirel now has known export tolerances for the U.S. The use of the acaricide Kanemite SC (a. s.: acequinocyl) remains prohibited if hops are exported to China.
Furthermore, the fungicide Folpan 80 WDG (folpet) has significant usage restrictions. It is important to note that its MRL for the U.S. (120 ppm) is lower than for Europe (400 ppm), which must be considered when determining the timing of application.
The active substance milbemectin still does not have known export tolerances for the U.S. market, so the use of the acaricide Milbeknock is limited. Before using milbemectin, consult with your hop buyer in advance.)
Plant protection products in hops 2025 in Slovenia (2025 – in English): docx [63 kB], pdf [150 kB].