• Pepino mosaic virus

  January 1, 1970

  use of cross-protection with a mild strain, such as V10 . What is V10? V10 is a mild strain of Pepino Mosaic Virus used in a controlled way to protect plants [...] What is Pepino Mosaic Virus (PepMV)? Pepino Mosaic Virus (PepMV) is one of the most economically significant viral diseases in greenhouse tomato production [...] and management are critical for maintaining yield and marketability. PepMV is a highly contagious plant virus that primarily affects tomato crops. It spreads

• Root rot of carrot

  January 1, 1970

  necrotic leaf spots Life cycle and appearance of Root rot of carrots The fungus of R. carotae has delicate, simple morphological features hence is not easy [...] pathogens in Northwest Europe. Damage symptoms Rhexocercosporidium carotae is a slow-growing fungus that can infect both roots and foliage. The infection [...] after which whole sections of the leaf will die off. The fungus appears to prefer older tissue. In the field, the disease is difficult to distinguish from

• Using Predatory Mites, but still having Thrips Issues? Close the Gap in your Thrips Control Program

  July 16, 2024

  Thrips (Frankliniella tritici) fall off the leaf, pupating where they land, which is usually in the soil. Adding a soil-dwelling predatory mite such as St [...] Not having a multifaceted biocontrol approach that targets the different thrips life stages is the most common issue in failed thrips control programs [...] programs. Thrips are a widespread threat in most environments, entering growing spaces a variety of ways: on new plant material, clothing, pets, or flying in from

• Diglyphus isaea

  January 1, 1970

  rather than a leaf miner has come from the mine. This is also seen in the pillars that remain visible as black spots in the leaf. The adult is metallic green [...] it empty from the outside, as a result of which the leaf miner larva dies. A few days after being parasitized, the leaf miner larva turns flaccid and brown [...] instars: the first is colourless and transparent, the second is yellow and semi transparent with a brown fat body, and the third larval instar is blue-green.

• Knowing & recognizing

  January 1, 1970

  characteristics. Shop now Koppert - A knowledge company The use of biological control is not a simple process, it has become a complex system in which many aspects

• Understanding Orius

  July 12, 2024

  space! This tiny predatory bug is a powerful tool in Integrated Pest Management systems (IPM)! Thripor (Orius insidiosus) is a common predatory bug that has [...] factor when implementing Thripor into your IPM program is knowing that they diapause. Diapause is a state of dormancy that allows insects to survive unfavourable [...] have a significant impact on the longevity (how long they live) and fecundity (how many eggs they lay during a lifetime). Because of this, it is best to

• Miglyphus

  January 1, 1970

  outside the leaf miner), using the dead larvae as food. Adult females also kill young leaf miner larvae by using them as a food source. This is known as host [...] isaea in the crop is signalled by short mines that contain dead leaf miner larvae. Older larvae and pupae are visible through the leaf. Pack size 500 adults [...] Pests Leaf miners ( Lyriomyza spp.). Mode of action Adult female parasitic wasps of Diglyphus isaea kill second and third instar leaf miner larvae in the

• Powdery mildew

  January 1, 1970

  General Powdery mildew is a fungal disease that is caused by many different species of fungi such as Erysiphe, Podosphaera, Oïdium, Leveillula. Damage [...] they don’t play a role in the epidemics. Fungal spores germinate on the leaf surface and the germ tubes grow and branch out on the leaf surface. Small [...] the leaf. In severe epidemics in cereals, the ears may also be infected. In pepper, the fluffy colonies occur mostly on the underside of the leaf, because

• Downy mildew of Cucurbits

  January 1, 1970

  water is required. For most downy mildews, the optimum temperature is around 15 o C and the closer the temperature is to this, the shorter the leaf wetness [...] after a while new spore-bearing structures are protruding from the stomata. Because there are more stomata on the underside of the leaf, this is where [...] General Pseudoperonospora cubensis is a plant pathogen causing downy mildew on cucurbit crops like cucumber, cantaloupe, pumpkin, watermelon and squash

• Stick it to Pests: The Power of Mass Trapping

  May 17, 2024

  of the facility. For instance, consider a scenario where whiteflies are infesting a tomato crop in one corner of a greenhouse. Without intervention, the [...] for mass trapping, at a rate of 2,000/ha. Space them throughout the crop in a grid-style pattern. In all cases where pest pressure is expected to be high [...] we have noticed there is a higher efficacy with Horiver sticky cards . Compared to roller traps , Horiver sticky cards have a different thickness, glue