Poinsettia. Main pest pressures
May 21, 2019
gnats, can cause serious damage to the cuttings, to the extent of killing them. The larvae feed on the young roots of the plants, and can then progress into [...] nematodes per m 2 of cultivated area Apply at 2, 5 and 8 days after planting; this is key to ensuring that cuttings can form roots without being damaged, and [...] sufficiently mature to avoid damage Whitefly The glasshouse whitefly, Trialeurodes vaporariorum , and the tobacco whitefly , Bemisia tabaci , a non-native notifiable