Fly pollination

flower to flower in search of nourishment, they inadvertently transfer pollen from one bloom to another. This accidental pollination contributes to the genetic [...] ensuring that pollen is distributed evenly, leading to improved fertilization and higher crop yields. Benefits of flies Lucilia sericata is a generalist [...] flies show a stable emergence rate in combination with a high rate of activity in the crop. Natupol Fly is packed in a cardboard tube with a plastic lid

Phytoseiulus persimilis

This has the advantage that an outbreak is quickly and effectively dealt with, but the disadvantage is that it disappears rapidly in the absence of suitable [...] persimilis is sensitive to relative humidity below 70%. Phytoseiulus persimilis in bottles The predatory mite Phytoseiulus persimilis is available in a bottle [...] are similar to the adults in appearance, but smaller in size. Best conditions for use of Phytoseiulus persimilis Phytoseiulus persimilis is most effective

Verticillium wilt

causes the xylem vessels to get blocked, which in turn causes the plant to wilt. Spores may be wind-dispersed to new hosts. In the senescent tissue, the [...] are pale-green, then orange-yellow. In the beginning the plant seems to recover at night. The symptoms may occur only in parts of the plant. Cutting the stalk [...] cuttings Grow less susceptible cultivars Prevent damage to the roots by controlling the nematodes, as damaged spots can be used as points of entry Prevent

Garden chafer

with a dark edge. The neck shield is metallic green to shiny black. In Central Europe, they emerge from the soil in May or June. Low swarming flights just [...] males, who mate with females that stay close to the ground. Females start to deposit eggs into the soil at a depth up to 5 cm soon after mating. The eggs [...] garden chafer ( Phyllopertha horticola ) is a beetle from the Scarabaeidae family. It does most of its damage in the larval stage when it feeds on roots

Vine mealybug

effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order [...] filaments' that project at the posterior end. There is often a darker longitudinal stripe running over the body. Damage symptoms Mealybugs inflict damage on the [...] are golden-yellow in color and are deposited in an cottony egg sac (ovisac) containing from 300-500 eggs. The nymphs are very similar to the adult female

Pine processionary moth

arranged in pairs. The integument and hairs that clothe the body vary considerably with different provenances. In general, the integument is darker in colder [...] pityocampa), is a major pest of pine trees around the Mediterranean Sea. It is most conspicuously damaging on pine plantations, or amenity pines. Damage symptoms [...] trees are clearly visible. Defoliation damage is extremely serious in young reforested areas where it may lead to death of trees, directly or as a consequence

Municipality Venray: biological control of oak processionary caterpillars

According to Bergeijk, the results have been generally positive. ‘The trees that we have treated have been 90% cleared. What is interesting is that avenues [...] other caterpillars , which means they are less harmful to biodiversity. This is something that is high up on the political agenda, as well as being an important [...] running east to west are typically free of oak processionary caterpillar, while those running north to south still have some nests. It is possible that there

Pepper weevil

monitored, given their ability to cause huge damage. When they are already present on the crop, the best approach is to monitor them during the cooler [...] calyx to turn yellow before wilting and dropping off. When you see fruit on the ground, it is clear that the crop has been very severely damaged. Lifecycle [...] measuring 2 to 3.5 mm in length, and over time they turn grey, reddish-brown, or nearly black. Their main distinguishing feature is a ‘snout’ which is longer

Entonem keeps young orchids free from fungus gnats

pupae. ‘It is a good product that we apply to the crops using a Dosatron,’ explains Rogier Veldhuijs, assistant location manager in Assendelft. ‘In the past [...] perfectly.’ It is important to apply it correctly, he says. ‘It’s a careful balancing act; you need to keep the spray solution moving to ensure that the composition [...] microscope to check for the presence of nematodes. If I can see them this means that the spraying was successful.’ A high standard To prevent damage to the young

Boisduval scale

Diaspi s are very similar in their appearance and damage symptoms. Here, the Boisduval scale is described in more detail, as it is the most important one [...] tissue at the feeding site. In orchids, this scale tends to prefer the leaf midrib and the portion of the petiole that is covered by the sheath. Small [...] produce up to 200 eggs and live up to seven months. Eggs hatch within five to seven days under the scale and become crawlers. The crawlers move out to look for