• Aphidoletes aphidimyza

  threads. The cocoons are covered with small particles of soil and are about 2 mm long. Adult Stage: Adult Aphidoletes aphidimyza are small, slender flies [...] stics at each stage. Here's how growers can identify the different life stages: Egg Stage: Aphidoletes aphidimyza eggs are tiny and elongated, usually [...] colonies. They are translucent orange and difficult to see without magnification. Larval Stage: The larvae of Aphidoletes aphidimyza are the primary predatory

• Biological solution against green shield bug

  June 23, 2021

  this pest is challenging and chemical products are often used for this purpose, out of necessity. We are therefore thrilled that we have a biological solution [...] on the populations of beneficials that work against other pests such as thrips , spider mites , aphids and whiteflies. It is possible to remove green shield [...] effectively in practice. Large-scale field tests in a number of countries are expected to confirm these results this year. Bart Sels, General Manager for

• Parasitoid wasps

  What are parasitoid wasps? Parasitoid wasps are small insects that play a crucial role in natural pest control. They are called "parasitic" because they [...] eventually killing it. These wasps are highly specialised, with different species targeting specific pests. They are effective in reducing the population [...] horticulture and agriculture. Unlike chemical pesticides, parasitoid wasps are natural and do not harm beneficial insects, animals, or the environment. Benefits

• Poinsettia. Main pest pressures

  May 21, 2019

  and the tobacco whitefly , Bemisia tabaci , a non-native notifiable pest, are reported to be the main pest pressures. However, over the last few years, [...] they usually cause little real damage, their scales and white waxy deposits are, unfortunately, highly visible on the undersides of the leaves, which can [...] in rejection and lost sales. Control Strategy Yellow Horiver Traps These are required for monitoring pest levels, and calculating the number of natural

• Pepino mosaic virus

  rapid spread and impact on fruit quality, effective prevention and management are critical for maintaining yield and marketability. PepMV is a highly contagious [...] mechanical contact, making greenhouse environments particularly vulnerable. There are several strains of PepMV, with varying levels of aggressiveness, but all can [...] It multiplies and moves rapidly through the plant, often before symptoms are visible. Symptom development Symptoms can appear within 1–3 weeks, but infections

• Steinernema carpocapsae

  commonly used in biological pest control . These microscopic roundworms are parasitic and are known for their effectiveness in controlling a variety of pests. [...] systems: Pressure-compensated irrigation systems are recommended. If not available, spray or drench applications are recommended. For injection through Dosatr [...] grubs, beetle larvae , and fly larvae . Steinernema carpocapsae nematodes are often applied to the soil or sprayed onto plant foliage as a biological control

• Phytophthora blight

  cells which are resistant to desiccation) or mycelium. Zoospores are formed from the overwintering structures which infect the host. Zoospores are spores with [...] of Phytophthora blight Phytophthora species are very destructive organisms belonging to the Oomycetes and are therefore strictly speaking not fungi. They [...] hores (structures containing sporangia, a type of spores) with sporangia are formed that protrude through the stomata. Secondary infection is either by

• Fusarium head blight or scab

  conidia are produced that further spread the disease. Gibberella zeae (Fusarium graminearum ) primarily infects the older, lower leaves. The spores are dispersed [...] Fusarium is widespread and can infect a range of host crops. Many species are considered weak pathogens and can only infect wounded or stressed host plants [...] splashing rain drops or wind. On the infected ears, the typical pink spores are produced which may further spread the disease. Ascospores of Gibberella zeae

• Transforming crop protection: the rise of predatory mites

  July 21, 2025

  Koppert was the introduction of Amblyseius swirskii to combat whitefly and thrips in Campo de Cartagena and Almeria greenhouses - two pests that had become [...] predatory mites now form the backbone of protocols tackling invasive pests like Thrips parvispinus and Scirtothrips in peppers. The power of mites and the role [...] and open-field crops is growing rapidly. And once again, predatory mites are leading the way. Natural populations of predatory mites already exist in some

• Damping-off

  subsequently zoospores are produced. Zoospores are spores with flagellae, which enable the spores to move through water. The zoospores are chemically drawn to [...] where the side roots are formed or through other similarly damaged spots. On the infected plant, new sporangia with zoospores are formed, that allow the [...] water content ( > 70%) of the soil or substrate. Oospores are dispersed when soil particles are moved around by humans or machinery. Pythium can survive