• Tomato leaf miner

  one hour the larva crawls out of the leaf and falls to the ground. This occurs in the early morning. The larva crawls into the ground to pupate. A small [...] leaving the outer layers of the leaf and stalk intact. Shortly before pupating, the grown larva cuts a sickle-shaped exit hole in the leaf with its mouth [...] bacteria enter the plant tissue via the feeding spots. Life cycle and appearance of Tomato leaf miner The life cycle of a leaf miner has the following stages:

• Boisduval scale

  diameter and circular or oval. The cast skins of the nymph form a light yellow spot near the centre of the scale called the exuvium. Adult females can produce [...] under the scale and become crawlers. The crawlers move out to look for a suitable place to feed and become sessile usually after a few hours The development [...] this scale tends to prefer the leaf midrib and the portion of the petiole that is covered by the sheath. Small infestations on orchids cause extensive di

• About bumblebees

  pollinate a flower in a single visit. A honeybee typically needs to visit a flower between 7-10 times, before it is fully pollinated Bumblebees lack the sop [...] throughout the winter season. Before hibernation, the new young queens will leave the old nest and mate with drones. As temperature rises and the spring season [...] for the brood as well as perform maintenance jobs on the nest. As the nest continues to develop, the queen will not leave it. She will be inside the nest

• Caterpillars

  s? Caterpillars are the larvae of butterflies and moths. Butterflies and moths form the order Lepidoptera, a very large group with more than 150,000 species [...] belong to the Noctuidae (the noctuid or owl moths), which is the largest of all lepidopteran families. Most adults of this family are nocturnal. The caterpillars [...] pupate in the ground. Another family containing several species that damage greenhouse crops is the leafroller family, the Tortricidae. The name ‘leafroller’

• Oleander scale

  fried egg with a diameter of 2 mm. The newly hatched crawlers are roughly 0.3 mm long. They quickly attach themselves to the plant and form a scale. Colonies [...] oleander scales are a greyish, dirty white or yellowy colour, round in shape, with a scale whose apex is off-centred. This scale resembles a miniature fried [...] Scale infestation can be seen by the appearance of the scale armour on stems, leaves and fruits of hosts. Infestations on the leaves and stems may cause wilting

• Spidex Vital: Your Vital partner in spider mite control

  travelling the given distance. In a bottle of Spidex Vital a more diverse population composition is present, so when applied in hotspots the adults are [...] spider mite from the field to develop the eggs. This will increase the population in your crop. Download trial results Proof of predation The Phytoseiulus [...] be one of the most important products for our growers. As the result of many years of research and fine-tuning, Spidex is now delivered in a new formulation;

• Thrips

  six stages: the egg, two larval instars, a pre-pupa and a pupal instar, and finally the adult insect. The eggs are kidney-shaped and have a white or yellow [...] cause damage to the plant by piercing the cells of the surface tissue and sucking out their contents, causing the surrounding tissue to die. The resulting [...] leaves and the black dots of their excreta indicate their presence in the crop. At a later stage, the empty cells become desiccated and the adjacent cells

• Natupol

  be closed. Remove the plastic liner and the sugar water tank from the hive, then place the liner back inside. Seal the entire hive in a plastic bag, remove [...] Place the hive on a horizontal platform (avoid inclination, otherwise sugar water may leak) Position the hive about 20-60 cm above the ground in the shade [...] such a way that the hive is exposed to the first daylight Wait for at least 15 minutes after positioning the hive before opening the hive entrance, this

• Woolly apple aphid

  cracks and under loose bark. The nymphs become active in late March or April (in the northern hemisphere) and around the end of May, large colonies covered [...] occur during the summer months, also on new growth. Water shoots arising from the trunk or main branches, are very frequently attacked. The aphids mainly [...] General The woolly aphid, Eriosoma lanigerum , is a serious worldwide apple pest. It is probably of North American origin and has been distributed to other

• Spider mites and other mites

  n of the leaves, with the affected areas curling and twisting. This damage is caused by the mites feeding on the plant tissue, which disrupts the growth [...] and the availability of food. Here's an overview of the life cycle of plant mites: Egg: The life cycle begins with the female mite laying eggs. The eggs [...] laid on the underside of leaves or on other parts of the plant. The number of eggs laid by a single female can vary, and they can hatch within a few days