• Spidex Vital lives up to its promises

  critical and tense moment on cucumber farms like mine. And as spider mites can cause real problems in this type of crop, an even better beneficial is always welcome [...] major advantage for Sjaak van Dijk. ‘As already mentioned, spider mites can cause real problems in cucumbers. The ability of Spidex Vital to tackle spider

• Shore fly

  deposited on leaves or flowers in ornamental crops, lettuce and herbs also causes cosmetic damage, and sometimes this can occur on such a scale that growth

• Pear psylla

  inhibition and malformation of leaves and fruits. Heavy infestations can cause premature leaf fall and fruit drop. Flowers attacked by first generation

• Shallot aphid

  bulbs and shallot, the aphids often occur at the end of the storage period causing malformation of new plants. Life cycle and appearance of The shallot aphid

• Aphidius colemani

  secrete a warning substance, which affects the entire population, often causing aphids to drop from the leaf and fall to the ground. Although many aphids [...] development is complete the larva spins a cocoon inside the aphid cuticle, causing it to swell. The cuticle turns from a hard, leathery brown to a golden yellow

• Cactus mealybug

  Depending on the host plant species, infestations with cactus mealybug cause discoloration of the plants and later necrosis of the tissue. Plant deformations

• European red mite

  Predatory Mites Damage symptoms Feeding of European red mites on leaves of trees causes initially brown spots on the leaves and when these coalesce the leaves loose

• Circular scale

  in high infestations it may spread to fruits, stems and trunks, and may cause yellowing of leaves, premature leaf and fruit drop, and stem dieback. First

• Black bean aphid

  black bean aphid is mainly due to direct feeding damage. Indirect damage is caused through the transmission of plant viruses. Infestations start usually at

• Poinsettia. Main pest pressures

  May 21, 2019

  and strategy Sciarid fly Sciarid fly, commonly known as fungus gnats, can cause serious damage to the cuttings, to the extent of killing them. The larvae [...] proletella , has become more prevalent. Although, fortunately, they usually cause little real damage, their scales and white waxy deposits are, unfortunately