• Greenhouse whitefly

  sugar, and the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of [...] influence the development of fruit and lead to a reduction in yield. The honeydew deposited on fruit makes it sticky. Dirt adheres to the fruit, and the growth [...] into a white, oval case encircled by a ring of erect waxy rods. This is called the pupa stadium and these pupae are found on the oldest leaves. The adult

• Ahold Delhaize: ‘We can't sell anything without substantiated information’

  November 26, 2018

  improvement is only possible if the relationship between the producer and the buyer is clearly defined.’ Leon Mol is the director of product safety and [...] chain should not have to copy the measures that apply to the potato, vegetable, and fruit sector. ‘What we do want to see, however, is that ornamental plant [...] an important factor to us.’ Information included with the product is essential according to Mol. ‘After all, the products from the ornamental plant sector

• Hemp russet mite

  cannabicola is host specific to hemp/cannabis ( Cannabis sativa ). It cannot survive on other plants. Damage symptoms Damage is caused by the mites sucking [...] sucking out the contents of plant cells. Hemp russet mite develops on the stems and petioles of the hemp plant and can cause stunting. When populations are [...] are large, the mites can also be found on the underside of leaves. This results in smaller leaf size and suppressed bud growth leading to a reduction in

• Koppert UK Conference: 19th October 2023

  August 25, 2023

  provide the product portfolio to ensure you get the best from your relative industry. Register Your Interest Now To register your interest for the event [...] event, and to receive a formal invitation, please fill in the contact form on the link below: Contact | Koppert UK We look forward to welcoming you all on October [...] conference will provide the perfect opportunity to engage with experts and find the answers. There will also be an opportunity throughout the conference for leading

• Onion thrips

  indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations become serious the leaves themselves can shrivel [...] inserted into the plant tissue with a saw-like ovipositor. Larvae are light to yellowish green in colour, with a large head and bright red eyes. The colour of [...] cells of the surface tissues and sucking out their contents, causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black

• False spider mites

  mites because their body is rather flat compared to other mites. Most species that cause damage to cultivated plants belong to the genera Brevipalpus and [...] found on the underside of leaves where they cause a brown, scabby discolouration spreading from both sides of the main vein into the leaf blade. The damage [...] on the underside of leaves. The mites are flattened and egg-shaped when seen from above, with their dorsal surface showing a net-like pattern. The eggs

• Diamond back moth

  may occur in the florets. Initially, the pupa is pinkish-white to pinkish-yellow and changes to brown before adult emergence. The adult of the diamond back [...] ochreous and the markings are like those of the males. The back is marked with a broad cream or light brown band along the back, which is sometimes constricted [...] distances to invade crops in other regions. Damage symptoms The caterpillar is a surface feeder. They feed from the lower leaf surface, leaving the wax layer

• Crucial information on pollination at high temperatures

  August 10, 2020

  pollinators is sufficient to ensure good pollination . The single biggest problem is that if there is not enough strength in the plant, the setting may [...] impact of temperatures on the pollination activity of our bumblebees. It was now time to complete the equation by looking into the effect of hot climate conditions [...] temperatures We all know that proper pollination of a flower is the most critical process related to fruit set, yield, and quality, but are you clear on

• Tomato leafminer

  place in the soil or on the surface of a leaf, in a curled leaf or in a mine. If they leave the mines they build silk cocoons on the leaflets or in the soil [...] mine inside the leaf, stem or fruit. In the second to fourth instars they become greenish with a black band behind the head. The prepupae of the tomato leaf [...] General The tomato leaf miner (Tuta absoluta), a major pest of field- and greenhouse-grown tomatoes, belongs to the family of Gelechiidae . It is oligophagous

• Koppert Foundation

  Koppert established the Koppert Foundation on their 50 th anniversary in 2017. This Foundation aims to contribute to sustainable solutions for horticulture [...] horticulture and agriculture and improvement of the health and availability of food and nutrition for those who need it most. Scope Koppert Foundation focuses