• Cabbage looper

  January 1, 1970

  upper leaves of plants. The eggs have a spherical shape, with the flattened part attached to the leaf, and are a yellowish or greenish white colour. The [...] plants. The pupae have a green colour and then change to a coffee brown colour when close to adult emergence. Finally, the adult has a mottled grayish-brown [...] General Trichoplusia is not only a damaging pest in crucifers, their favourite host, it can also be found in crops such as tomato, pepper, some cucurbits

• Ten need-to-know facts about caterpillars

  June 28, 2023

  females. Another technique is to use the pheromones to lure the butterflies and moths to a trap with a sticky surface or a pool of water. In addition to [...] moth, cotton bollworm, cabbage leaf roller, carnation leaf roller, Duponchelia, box tree moth, banana moth, tomato leaf miner moth, and Paysandisia archon [...] reproduce is in protected crops – after all, it’s usually warmer inside than outside. The caterpillars of the butterflies and moths can do a lot of damage

• Finish Clean with an IPM Based Program

  August 10, 2021

  Pick Out the Perfect Poinsettia is Approaching At Koppert we believe that a perfect Poinsettia starts when the plant is barely sticking out of the soil [...] the roots which are used as a highway for nutrients to the plant to help promote strength and growth of the plant. To make a prize winning Poinsettia, Koppert [...] are many definitions that explain what Integrated Pest Management is. Most important is its aim: use biological control when you can, chemical control when

• How beneficial nematodes control onion fly

  January 1, 1970

  Onions are a common crop worldwide, but their cultivation is often challenged by onion fly ( Delia antiqua ). The larvae of the onion fly can cause significant [...] are using beneficial nematodes as a crucial biological control solution. Michiel Bouma, an onion grower in Rutten (NL), is one such grower who has witnessed [...] challenge is the Delia antiqua , female onion flies lay their eggs near the base of onion plants. Hatching from the eggs, the larvae crawl behind the leaf sheaths

• Hemp russet mite

  January 1, 1970

  Aculops cannabicola is host specific to hemp/cannabis ( Cannabis sativa ). It cannot survive on other plants. Damage symptoms Damage is caused by the mites [...] on the underside of leaves. This results in smaller leaf size and suppressed bud growth leading to a reduction in the number of buds and dwarfed buds. This [...] of damage include dull, greyish, or bronzed leaves and upward curling of leaf edges. Life cycle and appearance of Hemp russet mite All life stages of the

• Tomato russet mite

  January 1, 1970

  Australia and is a pest in tomatoes in all areas where they are grown. Other members of the plant family Solanaceae may be affected to a lesser extent [...] The first nymphal stage is a transparent white colour and about 0.1 mm long. They usually develop to the 2nd stage within a day. All life stages look [...] Damage symptoms Damage is caused by the mites sucking out the contents of plant cells. Affected leaves are slightly curled and acquire a silvery sheen on the

• Cotton leafworm

  January 1, 1970

  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 [...] median vein. The ocellus is marked by two or three oblique whitish stripes. The front of the wingtip has a blackish marking, which is more pronounced in the [...] the Azores. Damage symptoms Most of the damage is caused by the older caterpillars which are voracious leaf feeders. Extensive feeding by the larvae may

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

  May 19, 2025

  takes to 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 [...] on a crop, I was amazed. Seeing how a plant remained healthy and vigorous thanks to these tiny allies was a revealing experience ”, she recalls. A legacy [...] generations ”, she emphasizes. Certainty for a sustainable future “ Nothing beats original ” is not just a slogan but a philosophy that lives in every detail

• Greenhouse whitefly

  January 1, 1970

  whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and the excess is excreted [...] remain flattened on the leaf. The fourth larva stadium develops into a white, oval case encircled by a ring of erect waxy rods. This is called the pupa stadium [...] es: If the population is very large, feeding on plant sap can affect the physiology of the plant, as a result of which growth is retarded. In full sunlight

• Rhyzobug Brochure

  January 1, 1970

  environment • Safe for user • Admitted in organic agriculture • Contributes to a healthier end product • Environmentally friendly • Helps biodiversity • Natural [...] effect of Rhyzobius lophanthae on Aspidiotis nerii in lemon in Spain 400 A. nerii / 10 cm2 300 Introduction rate 1:250, avg T: 27,8°C 200 100 Untreated [...] Untreated 0 0 1 2 3 4 5 6 R. lophanthae Weeks after predator release A. nerii / 10 cm2 150 The effect of Rhyzobius lophanthae on Aspidiotis nerii