• May beetle

  to crops, since they feed on plant roots, resulting in visible water stress and ultimately ending in the death of the plant. From the third stage onwards [...] symptoms Initial damage is not visible in the aerial parts of the plant, as the larvae only feed on root hairs and organic material during the first and second [...] instars. When they move to the next stage, the larvae start to feed on larger plant roots, which later leads to signs of wilting and stunted growth. Lifecycle

• Trianum effectively controls Pythium in cucumber

  roots. He puts two grams of Trianium-G on each mat before putting out the new plants in ‘duo’ pots (two plants in one rockwool cube). He decided to do [...] just ticking over. Those sorts of conditions have a bigger impact on the beneficials than on the thrips, which means I need to be alert. The same goes for [...] Thripex , in an overkill) keep thrips under control on the farm. Hendriks releases Montdorensis every week on half of his crop – the even rows one week, the

• Large blackberry aphid

  triangular. The aphids overwinter as eggs on blackberry plants. After emerging in spring, the aphids mainly feed on the underside of leaves and start to reproduce [...] and drop from the plant when they are disturbed. Winged aphids usually appear in June and July and migrate to new canes or host plants where they produce [...] aphid Amphorophora idaei . As both aphid species are host specific the host plant is the simplest method to distinguish these two species. The large blackberry

• Strawberry aphid

  mainly feed on the underside of young leaves. On outdoor strawberries, winged aphids appear in May and June; these aphids disperse to other plants and fields [...] most serious pests affecting strawberry plants. Direct damage is caused by the aphids sucking sap from the plant, which reduces the yield and quality of [...] excrete. Black sooty mould fungi grow on the honeydew. The strawberry aphid is an important vector of several plant viruses affecting strawberries. Life

• Cotton aphid

  Aphis gossypii ) is an extremely polyphagous aphid found on more than 700 plant species. Crop plants attacked by this aphid include cotton, citrus, coffee [...] and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed [...] early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield. Plant sap is rich in sugars, but has a low protein content

• Southern European marshland pyralid

  species feeding on a wide range of hosts from 38 plant families. They include ornamental crop plants, such as roses and gerbera, aquatic plants, vegetable crops [...] decaying organic material on the ground or substrate. They feed on detritus as well as life materials. Young larvae feed on the leaves and flowers before [...] sometimes attacking the stem of the plant as well as the leaves. Late instar larvae burrow into soft woody or herbaceous plant stems causing withering or drying

• Ervibank

  y 30°C/86°F. Side Effects Aphids on banker plants are extremely susceptible to insecticides. Remove the banker plants from the greenhouse for at least [...] parasitoid wasps will parasitise the wheat aphids (Sitobion avenae) on the cereal plants, building a large population. The aphid infestation level remains [...] with a piece of wetted rock wool Take the tussock of cereal plants from the box and place it on the rock wool in the basket Place the basket in direct light

• Shallot aphid

  Damage symptoms Feeding of shallot aphid on strawberries invokes a strong host plant reaction. Infested plants become severely stunted when growth starts [...] and yield is reduced. On bulbs and shallot, the aphids often occur at the end of the storage period causing malformation of new plants. Life cycle and appearance [...] The shallot aphid, Myzus ascalonicus , is extremely polyphagous. It feeds on crops such as onions, shallots, strawberries, lettuce, brassicas and potatoes

• Sustainable cultivation goes much further than pests and natural enemies

  April 19, 2018

  industry which relies on mineral oil. ‘And we all know that mineral oil is a finite natural resource and that there are already restraints on its use due partly [...] his view on the future at the headquarters of Koppert Biological Systems in Berkel en Rodenrijs, the Netherlands. The interactions between plant and environment [...] natural and much less dependent on chemical crop protection products and artificial fertilizers.’ Technology is becoming cheaper On the other hand, research into

• Cerall: 100% Biological Seed Treatment Against Fungal Diseases

  July 26, 2024

  Bacteria & Plant The beauty of the Pseudomonas chlororaphis MA342 bacteria is that they encourage interaction with the plant. They cause the plant to start [...] a direct inhibitory effect on common fungal diseases. After application, as a seed treatment, the bacteria remain inactive on the treated seeds when stored [...] no fewer than 400 bacterial strains from the roots of wild and cultivated plants. They then screened these strains for their activity against the common