• Gummy stem blight

  January 1, 1970

  the fungi to enter the leaves Pick flowers within two days after opening in areas suspected of disease (only feasible in high-wire crops) Pick and remove [...] cucumis (Didymella bryoniae) is a fungal plant pathogen that causes gummy stem blight. Damage symptoms Mycosphaerella cucumis in cucumber causes brown lesions [...] spores, become visible. On the leaves, round and extending lesions may occur. In cucumber, the most important symptom is internal fruit rot, which can only

• Nature's Perfect Pollinator

  January 1, 1970

  them? Find out more Let our experts guide you Investing in a Quad Hive is not just a purchase—it's a partnership. Each Quad comes with expert consultancy [...] experience in the industry, our expertise is not merely a selling point - it's a guarantee. When you choose Koppert, you're partnering with the leader in sustainable [...] work of honeybees in conjunction with bumblebees for healthy competition. Our Quad hives Our Quad is not just a bumblebee hive, but a reliable, innovative

• Black leg of seedlings

  January 1, 1970

  for example in flower bulbs. At first, the plants recover during the night, but later the plants wilt irreversibly. In potted plants the flower buds fall [...] General Pythium is considered a ‘weak pathogen’, meaning that it can usually only affect plants that are in a sub-optimal condition or suffer from stress [...] Pythium affects roots, in particular those of seedlings. Infected plants lag in growth. Seedlings fall over (‘damping-off’). In slightly older plants,

• Amblyseius andersoni

  January 1, 1970

  have eight legs, and are a whitish yellow colour. Adult mites have eight legs, are a translucent white in colour, and have a flat, elongated body. They [...] leaves and does not build up a population. Amblyseius andersoni in buckets The predatory mite Amblyseius andersoni is available in a bucket ( Anso-Mite ). Mix [...] available in breeding sachets ( Anso-Mite Plus ). In this case the predatory mites multiply in the sachet and disperse into the crop over a period of several

• Casea

  January 1, 1970

  beneficial nematodes in Top Fruits Target pests of beneficial nematodes in Stone Fruits & Nuts Target pests of beneficial nematodes in Soft Fruits Target [...] spray tank (except when tank mixing with a compatible product) Maintain agitation of mixture in the tank (e.g. with a recirculation pump) Fill the spray tank [...] Nematodes can be applied using an airblast sprayer, a vehicle-mounted spray unit, a backpack sprayer or through a sprinkler system To avoid blockage, all filters

• Mealybugs and scales

  January 1, 1970

  therefore the yield. Where flowers and fruit are concerned, these often drop off; plant sap is low in proteins and rich in sugars. In order to gain an adequate [...] Fruit and flowers are also fouled, rendering them unfit for sale, and the reduced level of photosynthesis in the leaves also reduces flower and fruit [...] scales also produce honeydew (on which moulds grow) resulting in considerable damage in ornamental and fruit crops and loss of value. Armoured scales do

• Spinach

  January 1, 1970

  an edible flowering plant of the Amarantha family that originates in Asia. It is consumed as vegetable and is rich in iron. It is grown as a vegetable [...] vegetable worldwide and growths to a height of about 30 cm. It is eaten fresh, steamed or boiled and has a high nutritional value.

• Corn earworm

  January 1, 1970

  instars, over a total period of two to three weeks, developing a greyish colour and a black cephalic capsule in the first stage, but later adopting a variety [...] start to feed again on the tip of the cob, making holes in the corn. In other crops, they prefer flower buds and soft fruit. They cause visible damage through [...] to five months in areas with very cold winters. The pupae measure around 18 mm and have a slightly shiny brown colour. The adults have a brown-coloured

• Cannabis aphid

  January 1, 1970

  Although it was first described in 1860, the cannabis aphid ( Phorodon cannabis ; a.k.a. bhang aphid or hemp aphid) is a very new pest to North America [...] between 1.8–2.7 mm long. They are normally wingless but a winged form appears in late summer. Early in the season, the aphids are nearly colourless to pale [...] will typically reach maturity within a couple of weeks, and adults live up to a month. Outdoors, as the days shorten in late summer/early autumn, winged males

• Biosolutions for Cannabis

  January 29, 2026

  and settings used in their area or used in cannabis cultivation. This allows us to know what pest pressures are currently problematic in any specific region [...] grower wants (and doesn’t want) in the product. Lane Holland, right at home under the glow of HPS lights, works with a partner in the Midwest. It’s the best [...] beneficials, and beautiful flowers. Look & Listen Philosophy To solve a problem, the Koppert Consultant arrives on-site for a no cost up-close look. Subtle