• Bedding plants

  perennial plants used in gardens and parks. There is a wide range of plants especially produced to demonstrate coloured flowers in spring and summer. They [...] eschscholzia Tender annual or perennial plants are planted in a protected environment in late winter: begonia, chrysanthemum, arguranthemum, lobelia, [...] They are easily divided in four different categories: Hardy annual plants which are planted directly into the soil already early in the season: sunflower

• Long-tailed mealybug

  effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order [...] first kept beneath the body in a network of fine waxy threads. Over two or three weeks, a female produces 100-200 nymphs. In the summer, the life cycle [...] such as auxiliary buds and prefers a warm, humid environment. Damage symptoms Mealybugs inflict damage on the crop in various ways: Nymphs and females extract

• Tomato looper

  tomato fruit, often in a bunch of ripening tomatoes, however, it can also be found in the soil. The pupa has a pale green body, with a dark brown ventral [...] The body is sparsely covered with a few stiff hairs. In older caterpillars , each segment has a clear black dot above the lateral yellow lines. There are [...] chalcites ) belongs to the family of Noctuidae . It is a tropical and subtropical species originating in the Mediterranean and northern Africa. The larva is

• Sciarid flies

  areas in dark places, with a lot of organic material. They occur the whole year round. The eggs are minute (0.1 to 0.25 mm) and yellowish white in colour [...] roots. The larvae can grow to 5 to 12 mm in length and 0.5 to 1.5 mm in diameter. They are legless and have a conspicuous black head. The head is equipped [...] equipped with biting-chewing mouth parts. Pupation takes place in a small hole in the ground. Pupae are white, but later become yellow to brown. The posterior

• Western flower thrips

  occidentalis) are laid in leaves, flower petals and in the soft parts of stalks. They are inserted into the plant tissue with a saw-like ovipositor. Larvae [...] (Frankliniella occidentalis) usually pupate in the ground, although pupae can also be found on leaves, in flowers or in other sheltered places. The prepupal and [...] most damaging thrips species in many greenhouse crops. The western flower thrips (Frankliniella occidentalis) can be found on a wide variety of plants, including

• Lyprauta

  sp. are a transparent greyish white and have a long slender body. The head is brown or reddish. The pupae are white to yellow and embedded in a dense web [...] Keroplatidae) have been associated with root damage in potted orchids, especially in greenhouses in the Netherlands. Dutch farmers call these larvae potworms [...] large numbers of new branches. This ultimately results in a reduced number of flower stems and a longer vegetative stage. The root damage can also form

• Rice root aphid

  hum 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 [...] can reproduce year-round indoors. However, they can only live a few days without feeding on a host plant and they give birth to live offspring instead of [...] aphids , the rice root aphid appears in both winged and wingless forms. The wingless form is dark olive-green, with a round body 1.4–2.4 mm long. It lives

• Cutworms

  4 cm or more when fully grown. The caterpillars may be encountered in the soil in a characteristic, circular position. Pupa are brown to dark brown and [...] and feed mostly at night and hide in the ground during the day. Damage from these instars is usually observed as a cutting of young seedlings, often causing [...] the sap flow in the plant. Life cycle and appearance of Cutworms The adults of Agrotis spp. have pale grey to grey-brown forewings with a faint kidney-shaped

• Pollination checklist outdoor

  For instance, position the hive on a crate or on a stack of stones. Flowering weeds may be visited by bumblebees in addition to the target crop. You should [...] down any flowering weeds in and around the area to be pollinated. Protect the hive against strong winds. Position the hive in a sheltered spot, or weigh [...] Koppert's bumblebees ensure natural pollination in both indoor and outdoor crops. Good pollination in outdoor crops can be achieved by following the r

• Rose aphid

  of Rose aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction [...] is dark in colour. The siphunculi are black and bent outwards. The rose aphid usually overwinters on rose bushes in the egg stage, although in mild winter [...] aphid, Macrosiphum rosae , is a serious and often abundant pest of roses. It is virtually cosmopolitan and widely spread in Europe. Damage symptoms Infestations