• May beetle

  of the plant, as the larvae only feed on root hairs and organic material during the first and second instars. When they move to the next stage, the larvae [...] In cold climates they overwinter as larvae and continue their larval development the next spring. While the younger larvae are relatively harmless, the

• Tomato leafminer

  palps, that are well developed. Black spots are present on the anterior wings. Adults are nocturnal and usually hide between leaves during the day. Recommended

• Licence permits release of Koppert Swirski Mite® in polytunnels in England

  January 6, 2021

  programmes in strawberry crops grown under polythene tunnels. The new developments have centred around the control of various species of thrips especially [...] Mite® in various glasshouse crops since launching the product in 2007. “During this time, the use of Swirski Mite® has increased significantly in glasshouse [...] the season when cooler conditions prevail, with Swirski Mite® being used during the warmer months from May to August,” explained Jasper. “This will result

• Loose smut of barley

  Life cycle and appearance of Loose smut of barley The seeds are infected during flowering and the infected seeds are the primary source of inoculum in the [...] germinate within a day and infect the inner tissues of the newly infected seed. During maturation of the seed, the mycelium becomes thick-walled and swollen as

• Loose smut of wheat

  Life cycle and appearance of Loose smut of wheat The seeds are infected during flowering and the infected seeds are the primary source of inoculum in the [...] germinate within a day and infect the inner tissues of the newly infected seed. During maturation of the seed, the mycelium becomes thick-walled and swollen as

• Roots Growers positive about Mycotal against whitefly

  year. We could theoretically spray everything in the greenhouse to death during crop rotation, so that the new crop starts off “clean”. But given the lack [...] lack of effective products, that’s not an option.’ Halting whitefly development Last year, Sam talked to Koppert consultants and decided to compare the [...] season of tests and analyses. That said, I did notice that the whitefly’s development cycle had clearly been inhibited in the spots treated with Mycotal. We

• Praon volucre

  euphorbiae over a period of 18 days. Fifty percent of the eggs are laid during the first five days. At 23-25°C, the developmental time for Praon volucre [...] lays an egg inside the aphid where the larva of the parasitic wasp will develop. Larval pupation takes place under the aphid. This causes a silky, whitish

• Mycotal

  7-10 days. Visual effect Infested insects shrivel, or in humid conditions, develop a fluffy mycelium outside the insect. Pack size 500 gram bag with a cardboard [...] leaves and to the growing points Agitate the spray solution continuously during application For optimal results repeat the Mycotal treatment, at the specified

• Aphidius colemani

  an egg in an aphid in which four larval instars subsequently develop. Once larval development is complete the larva spins a cocoon inside the aphid cuticle [...] aphids , even when they are at low density. The behaviour of the female during egg-laying is typical of the Aphidiidae. First the host is examined by drumming

• Aphidius ervi

  typically range from 0.25-2 per m 2 /release. Releases should be repeated weekly during the period when aphid infestation is expected. Consult a Koppert advisor [...] aphid parasitoid. The waist is entirely black, without striping. As it can develop in large aphid species they are generally much larger than Aphidius colemani