FAQ Nematodes

Infected larvae will change color because of the growth of the bacteria and nematodes. In case of Heterorhabditis pink-reddish and Steinernema yellow-brownish [...] longer be found. In practice, the decrease of pest pressure is the only indication that the application has been effective. How long do the nematodes work [...] What is the substance the nematodes are packed in? In order for the nematodes to survive during transport and storage they need to be packed in a carrier

Grape downy mildew

during the growing season. The pathogen overwinters as oospores in fallen, infected leaves. In mild climates, it can also survive as mycelium in grape buds [...] pathogen causing downy mildew in grapes. P. viticola occurs in nearly all grape-growing regions worldwide. Damage symptons of Grape downy mildew P. viticola [...] viticola caninfect all green parts of the host plant with stomata, giving following symptoms: On young Leaves: yellow, translucent ‘oilspots’ with a chocolate-brown