Cannabis aphid

General Although it was first described in 1860, the cannabis aphid ( Phorodon cannabis ; a.k.a. bhang aphid or hemp aphid) is a very new pest to North America. It was first seen on cuttings originati

Corn rootworm

General The western corn rootworm ( Diabrotica virgifera virgifera ) is a chrysomelid beetle originating from North America, where it is regarded as the main pest of maize. Nowadays it is present in m

Impatiens thrips

General Impatiens thrips (Echinothrips americanus) is an increasing problem in greenhouse cultivation, having spread to many countries within the last 30 years. The thrips have mostly been able to spr

Yellow rose aphid

General The yellow rose aphid , Rhodobium porosum , is probably of North American origin but is now widely distributed in Europe, North Africa, parts of Asia and South America. It attacks plants of th

FAQ Nematodes

dry, the nematodes will survive and search for a host. It is therefore important to leave the soil moist for a few weeks after application of nematodes [...] clay soil is also not optimum for nematodes. In this case, repeated applications are needed. What are the optimal conditions for foliar applications? Nematodes [...] can, depending on their energy reserves, stay alive in the soil for a few weeks and look for a host. 3. Regulatory Do I need a spray license to apply nematodes

Cabbage looper

General Trichoplusia is not only a damaging pest in crucifers, their favourite host, it can also be found in crops such as tomato, pepper, some cucurbits, soybean, sesame and cotton. One of the reason

Rose aphid

General The rose aphid, Macrosiphum rosae , is a serious and often abundant pest of roses. It is virtually cosmopolitan and widely spread in Europe. Damage symptoms Infestations with rose aphids retar

Manual Growing lights

in the greenhouse for an optimal level of pollination Two types of frames have been designed, one for 12 bumblebee hives and one for 4 bumblebee hives [...] bumblebees being locked in for a long time. Please contact your Koppert advisor for more information of contact details for Metazet/FormFlex. 2.2.3 Other [...] to attract insects (bumblebees) for pollination. We then combined all this knowledge in our new bumblebee hive design for Natupol Excel (see figure 1.3 &

Two-spotted spider mite

hygienic measures. Moreover, it is essential to monitor your crop regularly for signs of spider mites, so you can detect an infestation early and take action

Rice root aphid

General The rice root aphid (Rhopalosiphum rufiabdominale) is a well-known pest in North America that survives outdoors all year round. It can affect plants grown in both soil and hydroponic systems.