• Municipality Venray: biological control of oak processionary caterpillars

  Entonem makes a big difference According to Bergeijk, the results have been generally positive. ‘The trees that we have treated have been 90% cleared. What [...] away. In some cases, we have to take curative action and extract the nests. But, on balance, Entonem makes a big difference to us in the fight against [...] that avenues running east to west are typically free of oak processionary caterpillar, while those running north to south still have some nests. It is possible

• Integrated Pest Management

  referred to as IPM, is a sustainable and environmentally responsible approach to pest management. It employs a combination of strategies to prevent and control [...] Management is a dynamic and multifaceted strategy for pest control. It combines biological, cultural, physical, and chemical tools to manage pests effectively [...] reliance on chemical pesticides, which can have adverse effects on both crops and the environment. Beneficial insects and biological control One of the key aspects

• Tarnished plant bug

  soft rot and ring rot. Life cycle and appearance of Tarnished plant bug Adult Lygus lineolaris are true bugs that can grow up to 6.5 mm in length and are variable [...] days later and begin to feed alongside the adults.They go through five nymphal stages, and as they mature they develop dark spots on the thorax and abdomen [...] plant bug) is native to North America, and it is especially common across the eastern half of the continent, from northern Canada to southern Mexico. It

• Long-tailed mealybug

  growth and causing deformation and / or yellowing of leaves, sometimes followed by defoliation. The overall effect is a reduction of photosynthesis and therefore [...] Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order to gain an adequate intake of protein, mealybugs must therefore [...] Fruit and flowers are also fouled, rendering them unfit for sale, and the reduced level of photosynthesis in the leaves also reduces flower and fruit

• Root rot of carrot

  al to the proximity to carrot rootlets. Conidia on leaflets produced a germ tube, an appressorium and an infection peg into an epidermal cell, and then [...] on cold-stored carrots are a major problem and can lead to significant postharvest losses Several different fungal pathogens cause similar symptoms, which [...] can continue to develop during storage. Alternaria radicina , Alternaria dauci and Rhexocercosporidium carotae (syn. Acrothecium carotae ) have been identified

• Predatory Mites: Should I Order Bottles or Sachets?

  May 31, 2024

  article was developed to answer all these questions and point you in the correct direction in choosing which predatory mite formulation to use for your growing [...] mite (for the predatory mite to feed on), and a carrier, such as bran (food source for the feeder mite). How do they work and how long do they last? Predatory [...] for effective pest control and cost efficiency in your growing space. By understanding the mechanisms and benefits of sachets and bottles, growers can make

• Greenhouse whitefly

  In full sunlight, leaves can wilt and fall. Such leaf damage can in turn influence the development of fruit and lead to a reduction in yield. The honeydew [...] egg, first, second, third and fourth larval stage (often referred to as ‘pupa’ although strictly spoken this is not true) and adult. The larvae are found [...] originally comes from tropical and subtropical America, probably Brazil or Mexico. Hundreds of plant species from different families serve as suitable hosts

• Potato/tomato psyllid

  are attached to a strand which connects them to the surface of leaves and can be found on the underside and leaf edge. Hatching occurs three to seven days [...] found to be responsible for serious crop damage, both directly and indirectly, the latter causing the greatest concern and proving difficult to control [...] the different instars, starting with orange, then greenish-yellow, and finally green. When they hatch, the adults have a yellowish-green colour and whitish

• Tobacco whitefly

  of its high level of resistance to many insecticides and its propensity for the transmission of viruses. Life cycle and appearance of Tobacco whitefly The [...] egg, first, second, third and fourth larval stage (often referred to as ‘pupa’ although strictly spoken this is not true) and adult. The larvae are found [...] that whiteflies cause to a crop is the result of sucking out the sap from the plant leaves and secreting honeydew. This can have the following consequences:

• Early blight

  two to three days later and sporulation within five days. Infection is both direct and through wounds and stomata. Spores are dispersed by wind and in some [...] Conidia and mycelium overwinter in the soil and on crop residues and cause primary infection of the leaves. Survival can be several years, up to eight years [...] potato and carrot). Post-harvest storage at 0-1 o C. A. brassicae and A. brassicicola : adjust the sowing date to avoid conditions conducive to infection