• Artificially lit crops pollination advice

  after the shortest day, depending on latitude and environment) rapid decline in colonies could occur. In the ever-evolving world of agriculture, the utilization [...] Placement advice in artificially lit crops For best results, consider the following placement advice in greenhouses with artificial lighting: In regions with [...] pollination is insufficient. Remove snow from the greenhouse roof when possible. Energy screens and grow lights The use of energy screens in artificially

• Powdery mildew

  epidemics in cereals, the ears may also be infected. In pepper, the fluffy colonies occur mostly on the underside of the leaf, because the fungus infects [...] water and ‘hides’ on the underside of the leaves. Therefore, this is where the colonies mostly occur in these crops. In covered roses, the colonies appear first [...] Leveillula taurica ) is through the stomata and the fungus grows inside the leaf. Later, the conidiophores in this case also protrude from the stomata. Conidia

• Amblydromalus limonicus

  fluids from leaves, which is useful for instance in sweet pepper crops as the predatory mite can establish in the crop before the pest appears. Amblydromalus [...] approximately 0.14 mm in diameter. The larvae have six legs, are the same colour as the eggs, and are only slightly larger. The larvae of Amblydromalus [...] other mites struggle. In tomato, use of Amblydromalus limonicus is not recommended as it is hindered by the glandular hairs on the stems and leaves and

• Downy mildew of Cucurbits

  around 15 o C and the closer the temperature is to this, the shorter the leaf wetness period that is required. Inside the plant, the pathogens produce haustoria [...] brown. On the underside of the leave fluffy growth appears which is first white and later turns grey-brown. This is actually the sporulation of the pathogens [...] through the stomata or directly by penetrating the cuticula. For germination free water is required. For most downy mildews, the optimum temperature is around

• Buckthorn-potato aphid

  barely exceed half the body length. The aphids overwinter as eggs on buckthorn. After emerging in spring, the aphids mainly feed on the underside of leaves [...] usually found in the lower parts of the plants and are not very mobile. In autumn, winged males and females are produced, which return to the primary host [...] Buckthorn- potato aphid does not cause plant deformation. The major problem in potatoes is the transmission of viruses. Life cycle and appearance of Bu

• Larvanem

  ) Mode of action The nematodes enter the pest and release symbiotic bacteria into the pest's body cavity. These bacteria convert the host tissue into a [...] reproduce inside the host. This kills the pest within a few hours to days after infection. Visual effect Infected pest insects in the root zone turn red [...] Nematodes Preparation Remove the sachets from the box and keep them at room temperature for 30 minutes Empty the contents of the sachets into a bucket containing

• European corn borer

  pupate in situ in the galleries or in the soil. Fully grown larvae overwinter inside their tunnels in stubble, stalks and maize ears, or in wild plants [...] long; body pale purplish brown to brownish and dark spots with a pale centre at the base of the hairs. The head is brown to brownish black. The pupae are [...] reddish brown. In Europe, adults appear in June. The eggs are laid mainly on the underside of leaves. The larvae initially feed on the leaves and then

• Spidex Vital lives up to its promises

  game changer in spider mite control. It changes the rules of the game and is even more in control of spider mites . And the grower reaps the benefits.’ [...] calm to the farm.’ He states that the weather conditions have been favourable up to now. But, he says, the summer is yet to come. ‘Later on in the season [...] explain the added value of the new product to the market in very clear terms. Just like its predecessor more than fifty years ago, Spidex Vital has the full

• Fusarium wilt

  Fusarium oxysporum is the only Fusarium that actually grows inside the vessel system of the host plant and spreads upwards inside the plants. The other species [...] blight in cereals and post-harvest decay. Fusarium oxysporum is the species causing vascular wilt. First the leaves turn yellow and wilt, mostly on one [...] upwards on the outside of the plant. Most Fusarium species only make asexual spores. Some also produce ascospores. The Fusarium oxysporum life cycle, is similar

• Roots Growers positive about Mycotal against whitefly

  notice that the whitefly’s development cycle had clearly been inhibited in the spots treated with Mycotal. We used the same dosage of Enermix in the three test [...] although the level of infestation is lower, he will also apply Mycotal in the unlit crops this year. Improved Mycotal still the best product In recent years [...] of infestation is higher and whitefly levels are high earlier in the year. We could theoretically spray everything in the greenhouse to death during crop