Crop protection
New predatory bug limits establishment of Nesi in tomato
Researchers have found three species of predatory bug in the Miridae family that can limit the establishment of the harmful predatory bug Nesidiocoris tenuis …
Rhizoctonia
Rhizoctonia solani is a soil fungus with a wide host range and worldwide distribution. Host plants include almost all vegetables, flowers, shrubs and trees. …
Switchable optical filters: the future of greenhouse covering materials?
One of the main tasks of the Smart Materials project was completed last year. Greenhouse simulation models were used to explore the potential effect …
Spread of plant viruses calls for vigilance
Viruses are among the smallest pathogens infecting other living organisms. Plants are also susceptible to a large number of viruses that can cause serious …
Crop protection products much more effective with adjuvants
Crop protection products are sometimes unfairly labelled as losing their efficacy against pests or diseases. On closer investigation it becomes clear that these products …
Mycosphaerella
The fungus Mycosphaerella, also known as Didymella bryoniae, can cause serious problems, particularly in cucumber cultivation. It can infect leaves, stems, flowers and fruits. …
“Hygiene protocol and resistant varieties go hand-in-hand”
As a cucumber grower you have to have iron discipline and nerves of steel. An apparently invisible enemy – CGMMV – is always lurking …
Prey diets greatly improve biological control by predatory mites
Predatory mites are the most important natural enemies used for biological pest control in greenhouse horticulture. Many of these predatory mites are mass-reared on …
“It works, but you need discipline to succeed”
Thrips are one of the biggest threats chrysanthemum growers face. But this hasn’t put off River Flowers in the central Dutch town of Zaltbommel: …
More measuring and timely tweaks keep pH and crop in balance
Growing media must allow plants to develop healthily all the way from the potting area to the living room. The correct acidity or alkalinity …