• Black vine weevil

  . Damage symptoms The major damage is caused by the feeding of the larvae on the roots. After the roots have been destroyed the larvae move into corms [...] stems of the plants. Both adult beetles and larvae are polyphagous and feed on a large number of plant species. High populations of larvae can destroy plants [...] active at night, taking round bites out of the leaves, starting from the edge. This damage is usually not a problem in vegetables and fruit crops but reduces

• Premium Quality, Around The World

  March 6, 2023

  Job explains. A Dedicated Customs Zone The second requirement – on-time delivery – relies on precise organization: ‘An important element here is the fact [...] no matter where in the world the products are headed, they need to arrive on time and with their quality perfectly preserved. Koppert pulls out all the [...] the Netherlands needs to arrive in, say, Mexico or Kenya within one or two days. Koppert puts much effort and dedication into controlling its supply chain

• Comprehensive Control Combination for Carrot Fly

  May 13, 2022

  After a few days, the eggs hatch into colourless larvae which feed on fibrous side roots of young plants, but can also feed externally on young tap roots [...] dispenser is positioned in the field on a supporting pole. The standard dispenser introduction rate is 4/ha, but this can be increased to 8/ha in high-risk [...] Adult Carrot fly (Psila rosae) on a Carrot root Carrot fly The Carrot fly, Psila rosae, emerges from overwintering pupae, to lay white, ovoid eggs, in

• Sportnem-T

  into a food source, on which nematodes feed, develop, and reproduce inside the host. This kills the pest within a few hours to days after infection. Visual [...] to side effects database Storage time after receipt See expiry date on the box. On average product can be stored for 2-3 months. Storage temperature R [...] if finer than 0.3 mm (50 mesh) Use a maximum pressure of 20 bar/290 psi (on nozzle) The spray nozzle opening should be at least 0.5 mm (500 microns –

• Isonet T for Tuta absoluta

  April 10, 2019

  As such this generally provides excellent control of Tuta , lasting for much of the season. Tomato crop with Isonet T applied Tomato growers, on whose sites [...] The product has been used successfully by UK tomato growers for control of this pest in the last two seasons. Close up of the polymer tubes Isonet T is composed [...] Isonet T should be applied at the start of the tomato crop, or even a few days in advance of planting ( e.g. in December or January for long season crops)

• Capyphor

  into a food source, on which nematodes feed, develop, and reproduce inside the host. This kills the pest within a few hours to days after infection. Visual [...] to side effects database Storage time after receipt See expiry date on the box. On average product can be stored for 7 weeks. Storage temperature Refrigerate [...] if finer than 0.3 mm (50 mesh) Use a maximum pressure of 20 bar/290 psi (on nozzle) The spray nozzle opening should be at least 0.5 mm (500 microns –

• Aphiscout

  small holes align with the opening Dosage The dosage of Aphiscout depends on climate, crop and aphid density and species, and should always be adjusted [...] Introduction rates typically range from 0.75-1.5 parasitic wasps per m 2 . This is equivalent to one unit every 250-350 m 2 . The parasitic wasps will emerge [...] Koppert advisor or a recognised distributor of Koppert products for advice on the best strategy for your situation. Environmental conditions Aphiscout is

• Pollination under artificial lights

  December 18, 2018

  special attention to their growing lights. High time to focus on the effects this can have on the pollinators doing their job in your greenhouse! Koppert [...] have looked at all the features on the hive and give advice on how to enhance the work of our bumblebees in poor (day)light conditions. We hope that our [...] shares with growers is based on more than 30 years’ experience in the field and valuable growers’ feedback. The eight-page manual on 'Pollination and growing

• Cabbage moth

  hiding in the crop during the day. Several days after emerging from their pupae the female moths lay clusters of 20 to 100 eggs on the underside of leaves or [...] symptoms Large caterpillars feed mainly on the youngest leaves, producing skeletonized leaves, holes and frass on leaves. The caterpillars destroy large [...] highly polyphagous defoliator. Besides being a major cabbage pest, it feeds on 70 plants of 22 families, among them crops such as sweet pepper, tomato,

• Certainty in the quality of every sachet and bottle of our predatory mites

  April 16, 2025

  ensure they meet our highest quality standards. This is not just a simple promise but a reality built day by day thanks to the work of people like Bertha María [...] only because they provide us with food but also because they sustain life on earth. Commitment to biological excellence Bertha found in Koppert the perfect [...] to different conditions to protect plants ”, Bertha passionately explains. This adaptability, combined with the mites' voracity and tenacity, guarantees