• Cannabis aphid

  of the Cannabis aphid Adult cannabis aphids are between 1.8–2.7 mm long. They are normally wingless but a winged form appears in late summer. Early in [...] aphids are nearly colourless to pale yellow, and as the days become shorter, they change to light green or brown with dark green stripes running the length

• Spidex Vital lives up to its promises

  Feltiella, and Swirskii. Together, they create an effective mix. You can see them soon after they have been released and they get right down to doing their [...] spider mites and hot-spots, the beneficials search more effectively and as they lay their eggs earlier, the population develops more rapidly.’ A sense of

• Neoseiulus californicus

  limonicus . They are roughly 0.4 mm in length. The eggs are oval, transparent to white in colour and are deposited on the underside of the leaves. They are smaller [...] development is much faster on a diet of spider mites than on other food sources. They can also survive longer than Phytoseiulus persimilis in the complete absence [...] lighter and have a flatter more elongated body than Phytoseiulus persimilis . They closely resemble other predatory mites used in biological control such as

• Neoseiulus cucumeris

  several other small organisms such as spider mites and tarsonemid mites. They also feed on pollen, which is useful for instance in sweet pepper crops as [...] underside of leaves on leaf hairs or in the axils of main and side veins. They are oval, white and have a diameter of approximately 0.14 mm. The larvae [...] six legs, are the same colour as the eggs, and are only slightly larger. They do not need to feed to develop into a protonymph. The nymphs are larger than

• Amblyseius swirskii

  several other small organisms such as spider mites and tarsonemid mites. They can also feed on pollen, which is useful for instance in sweet pepper crops [...] adult. Eggs are laid on the underside of leaves, often in the axil of veins. They are oval, white and are approximately 0.14 mm in diameter. The larvae have [...] legs, are a translucent white in colour, and have a flat, elongated body. They are roughly 0.4 mm in length. Males are smaller than females. The mites are

• Asian citrus psyllid

  citrus by burning back new shoots or causing leaves to twist or notch as they mature. Worst damage is done when the insect is vector of the bacterium [...] spread when adults fly to a healthy plant and injects bacteria into it as they feed. The disease can kill a citrus tree in as little as five years, and

• Garden chafer

  edge. The neck shield is metallic green to shiny black. In Central Europe, they emerge from the soil in May or June. Low swarming flights just above the [...] whitish bodies, and normally lie in a characteristic 'C-shaped' position. They possess three pairs of legs, of which the middle and hind pairs are approximately

• Potato aphid

  When reproduction is asexual, the young aphids are born as developed nymphs. They immediately start to feed on plant sap and grow rapidly. When reproduction [...] females. Aphids moult four times before reaching adulthood. With each moult they shed white skin, betraying their presence in the crop. The adult potato aphid

• Entonem keeps young orchids free from fungus gnats

  essential that we do something to combat fungus gnats every five days. If not, they will break out.’ This is something that Floricultura wants to avoid at all [...] all costs, he says. ‘If fungus gnats are given the chance to develop, they start eating the young roots. This can considerably slow down plant growth. It [...] Floricultura examines the action of the nematodes under a microscope. First when they have just come out of the packaging and later after spraying. Dennis van

• 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 are [...] large head and bright red eyes. Adult females are very variable in colour. They range from almost white through yellowish orange to almost black. Western