• Long-tailed mealybug

  yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order to gain an adequate intake of protein, mealybugs must [...] sale, and the reduced level of photosynthesis in the leaves also reduces flower and fruit production. In ornamental crops, the mere presence of mealybugs [...] first kept beneath the body in a network of fine waxy threads. Over two or three weeks, a female produces 100-200 nymphs. In the summer, the life cycle

• Glasshouse potato aphid

  to deformations in the growing tip of the plant. Precisely where the plant is pierced is unimportant. The piercing of the lower leaves in the crop can cause [...] margins. The immediate effects of piercing by the aphids are visible in lower leaves in the form of yellow patches. Heavy yellowing may even be followed by [...] presence in the crop. The wingless adult stage of the greenhouse potato aphid is rather squat, of medium size (1.8 - 3.0 mm long) and oval in shape. It

• Grapevine powdery mildew

  buds or as chasmothecia (sexual fruiting bodies) attached in the bark crevices and plant debris. In spring, chasmothecia release ascospores during periods [...] mycelium. As the infection intensifies, affected leaves suffer a marked reduction in photosynthetic capacity, while shoots and flowers exhibit stunted growth and [...] Uneven and abnormal cluster development Powdery coating on clusters resulting in loose, misshapen bunches Reduced yield potential Berry symptoms High susc

• Corn earworm

  which will start to feed again on the tip of the cob, making holes in the corn. In other crops, they prefer flower buds and soft fruit. They cause visible [...] cephalic capsule in the first stage, but later adopting a variety of colours such as green, brown, pink, and yellow. Other features are its size in the final [...] then pupates for ten to fourteen days, or three to five months in areas with very cold winters. The pupae measure around 18 mm and have a slightly shiny brown

• Effective Control of Spider Mite and Thrips

  July 6, 2020

  mite population. The predatory mites’ strength lies in how these two beneficials work together. In outdoor crops only the curative treatment with Spidex [...] larvae, both in the first and second stage. Thripex : This product contains the predatory mite Neoseiulus cucumeris . The predatory mite loves gorging on [...] for Spider Mites Spider mite and thrips are pests that are bound to turn up in strawberry cultivation. So how can you keep them at bay? Don’t panic: there

• The Spread of Whitefly

  August 14, 2020

  outside the greenhouse. In countries like Spain, where polytunnels are still widely used, infestations often just ‘blow’ in. This occurs in countries with high [...] 30°C/86°F. At the same time, an infestation can also live in and survive winter conditions, even in an empty greenhouse devoid of host plants. However, the [...] Whitefly simply blow in If the population on the infected plant grows too large, the adult insects will fly to another plant in search of somewhere to

• Enjoy multiple benefits against spider mite with Spical

  December 14, 2021

  driving up the infestation level in crops that may already be under some stress, such as in hot and dry conditions. In this situation, it’s useful to reinforce [...] inhibits production in vegetable and ornamental crops and can even render them unsaleable, which can easily cost thousands of dollars in turnover! Early release [...] Limonica: breakthrough in large-scale production of a complex predatory mite Limonica strong contender against persistent thrips Certainty in the quality of every

• About bumblebees

  colonies. Life cycle of bumblebees In nature, bumblebee queens hibernates alone and underground throughout the winter season. Before hibernation, the new [...] providing orders for the worker bumblebees. In late summer the queen will start producing new queens and males (drones) in order for the colony to reproduce. These [...] days. Honeybees are less active at low light levels Bumblebees work earlier in the morning and later into the evening hours Bumblebees pollinate flowers

• Artificially lit crops pollination advice

  Placement advice in artificially lit crops For best results, consider the following placement advice in greenhouses with artificial lighting: In regions with [...] shortest day, depending on latitude and environment) rapid decline in colonies could occur. In the ever-evolving world of agriculture, the utilization of artificial [...] to achieve optimal pollination rates. In this article, we will delve into the unique aspects of pollination in indoor environments and provide valuable

• Pollination checklist tomato

  damage. You should therefore position the bumblebee hive in the coolest spot, or at least in the shade, particularly during the warmest part of the day [...] and make it possible to check the bumblebees' work. A single visit results in the transfer of enough pollen for pollination. Fruit setting takes place once [...] between 50% and 80%. A relative humidity of more than 80%-85% will result in pollen not being released and the bumblebees will become inactive. Below 50%