Pollinators:
Bumblebees
Bumblebee
box
Danger to crops:
Aphids
(1)
Aphids
(2)
Butterflies/
Moths
Leaf
miners
Mealy
bugs
Nematodes
Sciarid
flies
Soil
infestations
Spider
Thrips
Whiteflies
Myzus Persicae Peach-potato
aphid
Aphis Gossypii
Cotton aphid
Photo: Aphid
The aphids are found in
almost all kinds of vegetables and flowers.
Duration of
development; some days under optimal circumstances, it
depends highly on the climatological conditions, the host
plant and the density of the population.
Damage picture; aphids cause suction damage and can
transfer viruses. In the secreted honeydew, secondary
fungi like sotimould may grow.
CROP PROTECTING AGENTS
APHIDIUS colemani
parasitic wasp
Duration of
development; egg-adult, at 20șC ± 13 days.
After laying its egg in an adult aphid, the aphid will
swell and turn brownish, the so-called 'mummy'. Through a
round hole with a small lid on the abdomen, the parasitic
wasp will leave the aphid.
Photo: Aphidius
colemani
APHIDOLETES
aphidimyza gall midge
Duration of
development; egg-adult, at 20șC ± 21 days.
The eggs are laid in aphid concentrations. The larvae,
hatching from these eggs, suck out the aphids. The gall
midge is only active at night.
Photo: Aphidoletes
aphidimyza
ADALIA bipunctata
lady bug
Duration of
development; egg-adult, at 20șC ± 28 days.
The larvae in particular, but also the adults, feed on
all stages of various kinds of aphids in large
quantities. Adalia is often used in case of a serious
aphid attack.
Photo: Lady bug
(adult)
CHRYSOPA carnea
green lacewing
Duration of
development; egg-adult, at 20șC ± 27 days.
The larva is active for the duration of 12 days and can
devour in this period over 300 aphids. The adult lacewing
feeds on nectar, honeydew and pollen.
Photo: Chrysopa carnea