• Brown soft scale

  soft scale Coccus hesperidum is very common in tropical and sub-tropical regions and is also a common pest in greenhouses throughout the world. C. hesperidum [...] is often attended by ants. The ants will clean and protect the coccids and in turn benefit from a rich food source. The honeydew also quickly becomes infected [...] usually an elongated oval shape, 3-4 mm long, yellow-green or light grey in colour, with dark brown speckles or spots. The colour of the scale darkens

• Caterpillars

  caterpillars. Some species mine in leaves or bore holes into fruit or stems, making them difficult to detect and control. In addition to consumption of the [...] greyish. Adult butterflies do not damage crops. Most of them feed on nectar. In contrast, the caterpillars have biting and chewing mouthparts and can devour [...] Many species cause damage to crops. The most harmful caterpillars that occur in greenhouses belong to the Noctuidae (the noctuid or owl moths), which is the

• Gooseberry

  South and Southeast Asia. The gooseberry is also sparsely habituated in various location in North America. The rambling gooseberry bush grows up to 1,5 metres

• How to protect bumblebees from heat

  bumblebees in regulating their climate in hot weather conditions. Bumblebee hives with a sustainable future Plant pollinator interaction in hot temperatures [...] temperatures We understand the vital role that bumblebees play in pollination , especially in hot temperature conditions. As temperatures rise, it is crucial [...] keep cool in hot summer conditions to be able to function optimally and carry out their valuable pollination work. Best practice for pollination in hot te

• Pea blight, leaf and pod spot

  ) causes foot rot in peas, whereas Ascochyta pisi does occur sometimes at the stem base but is not part of the foot rot syndrome in peas. Infected seeds [...] appearance of Pea blight, leaf and pod spot Ascochyta pisi hardly survives in the soil or on crop residues because of its poor saprophytic competitiveness [...] water for dispersal. How to prevent Pea blight, leaf and pod spot Grow peas in arid regions Use clean seed Use a minimum crop rotation of four years with

• Phytophthora blight

  optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as oospores (sexual overwintering [...] Secondary infection is either by germinating sporangia or by zoospores produced in the sporangia. For germination on above-ground plant parts, leaf wetness is [...] causes the pathogen to be returned to the soil from infected plants. Dispersal in the soil happens via water, since the zoospores can readily move through water

• Aphidoletes aphidimyza

  is available in bottle ( Aphidend ). Open the bottle in the greenhouse Place the bottle directly on the soil or rockwool slabs or hang it in-between the [...] for its effectiveness in biological pest control , specifically targeting aphids . This beneficial insect is widely employed in integrated pest management [...] management (IPM) programs to suppress aphid populations in various agricultural and horticultural settings. The predatory gall midge Aphidoletes aphidimyza is

• Municipality Enschede: Entonem nematodes against oak processionary caterpillar

  The Municipality of Enschede started using nematodes for the first time in the spring of 2021 to try to halt the spread of the oak processionary caterpillar [...] caterpillar . The municipality’s built-up area has a total of 22,000 oak trees. In the past, the municipality only extracted the nests. But as Petra Klein Breukink [...] for the Municipality of Enschede. ‘We use Koppert’s nematode product Entonem in locations where we find a range of unusual butterflies and moths. As we only

• Municipality Doetinchem: Entonem nematodes managing oak processionary caterpillar

  biodiversity in the centre, and public opinion is quite sensitive to spraying here. We worked in consultation with distributor Mertens and decided that in spring [...] There are many oak trees in the forests and plantations around Doetinchem. Marc van Rijswijk is the spokesman for Buha, the implementing organisation for [...] management. Buha manages some 9000 solitary oak trees withing this municipality. In 2020 the level of infestation with the oak processionary caterpillar within

• Leafhoppers

  weakens plant growth and can lead to reduced yield and lower crop quality. In addition, leafhoppers can transmit plant pathogens, increasing the risk of