• Grape downy mildew

  humidity), the disease is often well-established before it can be visually detected in the field. Leaf symptoms Yellowish to light-green oil spots on the upper [...] viticola) relies on a preventive and integrated approach. Since the pathogen remains latent before symptoms emerge, control strategies should focus on reducing [...] interactions. When used as a lysate, these compounds support plant protection by acting both on the plant surface and by activating the plant’s natural defense

• Lesser house fly

  General The genus Fannia comprises almost 300 different species of fly, including the lesser house fly , the latrine fly and a whole host of other man [...] are considered a serious pest because: The males form swarms above the ground at head height inside barns and hen houses, making them a particularly annoying [...] of up to 100 on animal feces, moist organic matter or carrion. The brown larvae that emerge after a few days are typically flattened, with a fringe of spiny

• From Grower To Biological Pest Control Expert

  June 2, 2026

  Koppert US, as the featured industry expert in their Season 4, Episode 4 broadcast. The episode aired on May 14, 2026 and is available on their website [...] including the significance of a simple cucumber plant. He also delves into the role of Swirski-Mite in building the company to what it is today, and Koppert’s [...] Jeremy goes on to discuss how he, himself, made the transition from grower to biological pest control expert. He shares the interesting origins of the beneficial

• Downy mildew of Cucurbits

  downy mildews, the optimum temperature is around 15 o C and the closer the temperature is to this, the shorter the leaf wetness period that is required. Inside [...] 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 [...] directly and the germ tubes infect the plants either through the stomata or directly by penetrating the cuticula. For germination free water is required.

• Fusarium wilt

  inside the vessel system of the host plant and spreads upwards inside the plants. The other species are dispersed upwards on the outside of the plant. [...] Fusarium oxysporum is the species causing vascular wilt. First the leaves turn yellow and wilt, mostly on one side of the plant. Finally, the whole plant wilts [...] General Fusarium is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many species

• Biosulfur-S

  as part of a program supporting plant performance and yield potential. Learn more about Biosulfur-S Crops Horticultural crops. Biosulfur-S is registered [...] al, or greenhouse plants. Use a sufficient volume of water to ensure thorough coverage. For specific recommendations on crop and production practices, [...] registered for sale in the following U.S. states and territories: AL, AR, AZ, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KS, LA, MA, ME, MD, MI, MN, MO, MT, NC, ND

• Citripar

  to make a hole in the sticker on the lid. Hang the tube on the crop using the label according to the instructions on the label. Hang the tube in a place [...] not reach it. Leave the tube on the crop for at least two weeks. Carry out proper pest control. Dosage The dosage of Citripar depends on climate, crop and [...] develop in the mummified skin of the host and look like swollen mealybug larvae. Empty pupae have an irregular exit hole at the posterior end of the mummy after

• Grapevine powdery mildew

  mildew (Erysiphe necator) is a widespread fungal disease that poses a serious threat to commercial viticulture worldwide. The pathogen (also known as Uncinula [...] early berry development. As the season concludes, the fungus forms chasmothecia to ensure its survival through the winter. Given the polycyclic nature, preventive [...] Symptoms of grapevine powdery mildew vary according to the phenological growth stage and the severity of the infection. Early signs manifest as chlorotic (pale

• Gummy stem blight

  and higher up on the stem. On the lesions, golden-brown gummy drops occur, hence the name gummy stem blight. On the lesions, black specks, the new fruiting [...] be recognized from the outside by the small narrowing of the tip of the mature fruits. The symptoms on stems, leaves and inside the fruits may occur together [...] debris and produces the sexual ascospores and asexual conida simultaneously. The spores germinate when free water is present on the plant, at high relative

• Powdery mildew

  stomata on the underside of the leaf. On the upper side, yellow spots are noticeable. In case of a severe epidemic, the fluffy colonies also appear on the [...] infected. In pepper, the fluffy colonies occur mostly on the underside of the leaf, because the fungus infects the plant by entering through the stomata and there [...] Rosaceae , the fungus causing powdery mildew is extremely sensitive to water and ‘hides’ on the underside of the leaves. Therefore, this is where the colonies