• Tobacco thrips

  approximately 0.6 mm. How to detect Thrips parvispinus Thrips parvispinus is a major pest in greenhouse crops due to its ability to multiply rapidly in the [...] thrips, is a notorious pest that causes extensive damage to a wide range of plants. Recognizing the symptoms of a Thrips parvispinus infestation is crucial [...] environments. This insect poses a significant threat to a variety of cultivated plants, including ornamentals and sweet peppers. With a short life cycle and high

• Trianum effectively controls Pythium in cucumber

  He decided to do this in response to his crop’s susceptibility to Pythium. ‘My crop gets 20 hours of light a day, which means it requires a lot of water [...] which makes it susceptible to Pythium. A very acceptable level Kees grows Rijk Zwaan’s variety Skyson RZ, which has a lot of vigour and is suited to exposure [...] through the gutters to adjacent mats. ‘We sometimes lost up to 50% of production on the affected mats. It all adds up, and I don’t want to be faced with another

• Southern blight

  blight is a disease caused by the fungus Sclerotium rolfsii (Athelia rolfsii) . It is an important plant pathogen that inhabits the soil, and is responsible [...] rolfsii (Athelia rolfsii) is characterized by the production of vigorous mycelium. When the mycelium is young it is white; later it darkens. There are many [...] roots. The main damage caused by damping-off is reduction of the stand, meaning it is very often necessary to replant, which increases the crop's production

• Pseudomonas chlororaphis

  contributes to improved crop yields. Pseudomonas chlororaphis is effective under a wide range of conditions, including cold environments, and is easy to use, [...] treatment to control seed-borne diseases Pseudomonas chlororaphis strain MA342 is a micro-organism used in both conventional and organic farming as a bio-fungicide [...] compatible with existing seed-treatment equipment. With its targeted approach, Pseudomonas chlororaphis is a future-proof solution against seed-borne diseases

• Unveiling new packaging designs for Horiver sticky trap portfolio  

  January 8, 2024

  conducting counts, it becomes clear when pests enter the greenhouse, how they develop, and when a population will peak. In this way the grower is better prepared [...] pollination products during the first half of 2023, it is now our sticky trap product range that will enjoy a total makeover. The sticky traps are available [...] sticky cards and Rollertraps. Horiver sticky cards make it possible to detect pests at an early stage, to then tackle them biologically. This avoids the unnecessary

• Roots Growers positive about Mycotal against whitefly

  As a result of that choice, we’ve yet to find out how much of the effect can be attributed to Mycotal.’ Greater peace of mind Nevertheless, Sam is adamant [...] parasitic wasps and predatory bug. ‘It goes without saying that Mycotal’s biological nature is a big plus, as it means we can use it almost indefinitely and the [...] our cultivation to be as organic as possible, and we’ve seen how Mycotal really helps us to achieve that.’ So says Sam van der Knaap, who is responsible for

• Gummy stem blight

  downwards. How to prevent Gummy stem blight Before cropping: Remove all crop debris and disinfect the greenhouse Choose a cultivar that is less susceptible [...] General Mycosphaerella cucumis (Didymella bryoniae) is a fungal plant pathogen that causes gummy stem blight. Damage symptoms Mycosphaerella cucumis in [...] Silicon and/or Calcium nutrition hardens the cell walls and makes it harder for the fungi to enter the leaves Pick flowers within two days after opening in

• Apple collar rot

  Phytophthora cactorum is a plant pathogen that causes root rot, rhizome rot of strawberry, apple rot, apple collar rot and crown rot. It has an extremely wide [...] are spores with flagellae, which enable them to move through water. Infection is usually from the root to the foot, but direct infection of the foot also [...] above-ground plant parts, leaf wetness is required. Dispersal by wind and rain causes the pathogen to be returned to the soil from infected plants. Dispersal

• Producing Koppert’s ‘little heroes’ – nematodes for pest control

  September 5, 2019

  placed in a scale-up bioreactor, and finally scaled-up to a production bioreactor. After each and every step, quality control takes places to check purity [...] and to make sure the process parameters follow the normal pattern. Each nematode species has its own specific medium in which it develops best. A solution [...] solution of the medium is made in a flask and sterilized in an autoclave to avoid any risk of contamination. Then the nematodes are placed in a nutritious and

• Orius laevigatus

  laevigatus is used for the control of the following pests: Thrips The natural enemy Orius laevigatus is available at Koppert as Thripor-L . How to use Orius [...] insects in order to establish a population and encourage mating Make sure the material remains undisturbed at the introduction site for a few hours after [...] once or twice. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your situation. Orius laevigatus