• Tomato leaf miner

  tomato and melon. Loss of leaves also reduces yield. In full-grown plants of fruiting vegetable crops, however, a considerable quantity of foliage can get damaged [...] ovipositor, usually in the upper side of the leaf. Egg spots are oval and hard to distinguish from feeding spots. Larvae of Liriomyza bryoniae are transparent [...] ornamental crops, this is usually of less significance. Seedlings and young plants can be completely destroyed as a result of the direct damage caused by leaf

• Aphids and How to Protect Your Crop

  April 3, 2020

  other pests, aphids could be controlled effectively by means of selective chemical pesticides, with few adverse effects on biological controls. However, due [...] these solutions in more detail. Additionally, visit our Side-Effects Database for compatibility of these solutions with chemicals. Additional Information [...] pesticides, biological control is becoming the preferred method of controlling these pests. Overview of Aphid Plant Damage Aphids excrete honeydew, which attracts

• Fusarium spp.

  sulphureum (Dry rot of potato): Potato ( Solanum tuberosum) Fusarium solani : Members of the Fusarium solani species complex (FSSC) are capable of causing disease [...] yellow and wilt, mostly on one side of the plant. Finally, the whole plant wilts. Other symptoms are brown discolouration of the xylem vessels, which can [...] infection decreases the baking quality of wheat and brewing qualities of barley. Furthermore, mycotoxins are produced, of which DON (deoxynivalenol) is the

• NECANN Boston 2026

  April 7, 2026

  Swirski-Mite and Isarid to control cannabis pest pressure. Koppert’s experts provide trusted tech support to growers and are also pioneers of innovation. They’re [...] understand the plants and the industry. They’ve dealt with most, if not all of the pest problems that trouble cannabis, including thrips , fungus gnats, [...] Koppert booth is a must-visit while at NECANN. Koppert aims to reduce the use of chemical pesticides by focusing on key biological control agents to fight

• Thrips: a tiny pest with big consequences

  February 2, 2023

  due to their less attractive appearance. A general side effect of thrips infestation is reduced vigor of the crop. But that's no surprise, given that the [...] Puzzle Thrips Can Get Out of Hand Quickly! How do you identify a ‘thrips intruder’? Keep a Close Eye on Thrips All species of thrips employ the same strategy: [...] that's not all: thrips can also cause a loss of vigor and production. So put, the consequences can quickly get out of hand. Thrips are not picky, with most thrips

• Pollination checklist Growing lights

  the greenhouse. 13:00 Vertical placement will have a negative effect on the development of the hives. 10:00 1! Bumblebees need max. 2 hours to return [...] restricting filters are not blocking (early) sunlight. If side screens are used, take the angle of the sun into account. Natupol Excel Natupol Excel was [...] High & horizonal Growing lights in tomato crops Light timetable Points of attention 19:00 Snow 18:00 Place hives above the crop horizontally from

• Pollination checklist tomato

  all chemical agents can be combined with bumblebees. Consult the list of side effects, on paper or via the internet, or consult an adviser. You should preferably [...] precise picture of the situation. Flowers that are open for longer than one day have between one and five bite marks Check the work of the bumblebees at [...] hive once the number of bite marks has dropped to just one or two per flower. Pollen is released best at a relative humidity (RH) of between 50% and 80%

• Koppert At Cultivate 2026

  June 1, 2026

  ™. Cultivate by AmericanHort is one of the leading horticulture events in North America, providing a wide range of opportunities to explore and network [...] our team of experts. Bring your questions! Growers themselves, Koppert’s Technical Consultants have amassed broad experience with a wide range of commercial [...] the country. Drawing from their wealth of practical knowledge they devise creative strategies for managing some of the most troubling pests affecting plant

• Cotton leafworm

  littoralis) is a highly polyphagous species feeding on plants of 40 families, containing 87 species of economic importance. It originates in Egypt, and is currently [...] the Middle East and parts of Mediterranean Europe including the Balearic Islands, Madeira and the Azores. Damage symptoms Most of the damage is caused by [...] skeletisation of the leaves, whereby all that remains are the bigger veins. Young larvae also bore into buds, which results in shedding or drying up of the buds

• Entonem keeps young orchids free from fungus gnats

  g the effect of spraying Every week, Floricultura examines the action of the nematodes under a microscope. First when they have just come out of the packaging [...] plant, we maximize our use of biological plant protection, with a strong emphasis on prevention. The more pests we can keep out of the young plants, the better [...] to the 25 weeks and you need to take curative measures. All of this costs a great deal of money and is something we want to avoid.’ To combat fungus gnats