Long-tailed mealybug

damage. Life cycle and appearance of long-tailed mealybug The long-tailed mealy bug is easily recognized by the long, posterior tail filaments, which are [...] itself. The length of the other filaments is roughly half the width of the body. The female is 3 - 4 mm long. Reproduction in Pseudococcus longispinus [...] l regions, but these days it is widespread throughout the world. The range of host plants of Pseudococcus longispinus is less extensive than that of the

How to protect bumblebees in cold

15 ºC for optimal plant development. When your crop is healthy and the average 24-hour temperature is at least 15 ºC, you can ensure that there won't be [...] es: Warmth is key Place the hives in the warmest part of the tunnel/greenhouse, ensuring they catch the morning sun. Make sure the hive is in a sheltered [...] Keep in mind that the impact of climate on pollination and colony quality is also time-sensitive. The longer unfavorable conditions persist, the greater

How beneficial nematodes control onion fly

nematodes as a crucial biological control solution. Michiel Bouma, an onion grower in Rutten (NL), is one such grower who has witnessed the positive impact of these [...] Onions are a common crop worldwide, but their cultivation is often challenged by onion fly ( Delia antiqua ). The larvae of the onion fly can cause significant [...] nematodes. The challenge of onion fly infestation Michiel's primary challenge is the Delia antiqua , female onion flies lay their eggs near the base of onion

How to protect bumblebees from heat

be reduced if the humidity is too low or radiation is too high. In conventional greenhouses, the recommended humidity range is 60-75%. Due to better air [...] it is crucial to ensure effective pollination to support crop production and maintain high yields for growers. To ensure a positive result, it is crucial [...] environmental conditions. Above 28°C the pollination capacity is reduced as their activity is focused on cooling the hive. Above 32°C pollination may stop

Koppert is Investing in Smarter Scouting

The Koppert scout-app

Aphids and How to Protect Your Crop

Stable fly

Stomoxys on the animals’ front legs. The flies become an economic concern when the average number per leg is as low as two. When populations are very large (> [...] feeding (on average, a fly must feed four times before it can oviposit for the first time). After mating the females lay their small (~1 mm long), white, [...] lesser extent). Although they are extremely common and exist worldwide, it is believed they first originated somewhere in Eurasia. Stable flies superficially

House fly

the insect expanded its range worldwide long ago as a commensal organism to human populations; the housefly is always found in association with human activity [...] and appearance of House fly The adult house fly ( Musca domestica ) is 6–7 mm long, yellowish-grey to dark grey in colour, with four narrow black stripes [...] three weeks later at low temperatures (around 15°C). Adult flies have an average life span of 15–25 days, but can live up to two months in the right conditions

Encarsia formosa

wasp is approximately 0.6 mm long, with a head that is dark brown to black in colour, a dark brown to black thorax, and a yellow abdomen. The male is entirely [...] has become an important natural enemy for farmers and gardeners aiming to reduce the reliance on chemical pesticides. Encarsia formosa is used for the [...] parasitic wasp Encarsia formosa is available at Koppert as En-Strip . Encarsia formosa products En-Strip Enermix Expand all items How to use Encarsia formosa The

Predatory Mites Whitepaper

good average Neoseiulus cucumeris average average good good good good average avarage bad bad Amblyseius swirskii bad average average good [...] good average Amblydromalus limonicus average good good good good good average average bad bad Transeius montdorensis bad average average [...] high temperatures (30°C). At 15°C there is till some predation but development is very slow. If the temperature is below 8°C for a longer time, A. swirskii