DRC 564

High resistance (HR): plant varieties that highly restrict the growth and/or development of the specified pest and/or the damage it causes under normal pest pressure when compared to susceptible varieties. These plant varieties may, however, exhibit some symptoms or damage under heavy pest pressure. Intermediate resistance (IR): plant varieties that restrict the growth and/or development of the specified pest and/or the damage it causes but may exhibit a greater range of symptoms or damage compared to high resistant varieties. Intermediate resistant plant varieties will still show less severe symptoms or damage than susceptible plant varieties when grown under similar environmental conditions and/or pest pressure.

In the ongoing efforts to further harmonisation of resistance claims, the European seed industry through Euroseeds reviewed the resistance claims for Tomato spotted wilt virus (TSWV) in tomato and pepper and agreed from March 10, 2020 that the harmonised resistance claims for TSWV:0 will be Intermediate Resistant (IR) for both tomato and pepper. As a result of this harmonisation companies that previously claimed HR will adjust their claims to IR for the products involved. This adjustment is made to further increase transparency and consistency in the communication on resistance claims and does not imply any change in the effectiveness of the resistance nor any change in the genetic makeup of the varieties for which this change is made.

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