American serpentine leaf miner

spots are oval and hard to distinguish from feeding spots. The larvae of Liriomyza trifolii are entirely ochre-yellow. When the larva hatches from the egg [...] crawls out of the leaf and falls to the ground. This occurs in the early morning. The larva crawls into the ground to pupate. A small percentage of the [...] miners cause damage to plants both directly and indirectly. The most direct damage is caused by the larvae mining the leaf tissue, leading to desiccation, premature

Amblydromalus limonicus

limonicus lays 3.7 eggs per day on young eggs, 1.2 eggs per day on older eggs and 3.3-3.4 eggs per day on crawlers and nymphs. It consumes about 7 first instar [...] according to the prey eaten and they are sometimes greenish in colour when they take fluids from the leaves. Due to their size and colour they are difficult [...] adult. Eggs are laid on the underside of leaves. They are oval, white, and are approximately 0.14 mm in diameter. The larvae have six legs, are the same colour

Thripor-L

adjusted to the particular situation. Start introduction as soon as the first thrips are detected in the crop. Introduction rates typically range from 0.5-10 [...] situation. Environmental conditions Optimal temperatures for Thripor-L are above 20°C (68°F), lower temperatures slow down the development of Orius laevigatus [...] application boxes (Dibox) Apply in groups of at least 50 insects in order to establish a population and encourage mating Make sure the material remains

Miglyphus

adjusted to the particular situation. Start introduction as soon as the first mines are visible in the crop. Introduction rates typically range from 0.25-3 [...] intervals or until control is achieved. At low temperatures (<20°C/68°F) it might be better to use Minusa . Consult a Koppert advisor or a recognised distributor [...] second and third instar leaf miner larvae in the mine and lay their eggs next to them. The eggs develop into parasitic wasps inside the mine (but outside the

Knowing & recognizing

pest’s lifecycle and its many phases, as well as giving you the ability to recognize the pest or disease you are up against by means of detailed illustrations [...] with the necessary information to understand the interaction between pests, diseases and their natural enemies. It explains how they spread in the crop, the [...] is not a simple process, it has become a complex system in which many aspects need to be considered. The need for knowledge has been recognized by Koppert

Onion thrips

eggs of the onion thrips (Thrips tabaci) are laid in leaves, flower petals and in the soft parts of stalks. They are inserted into the plant tissue with a [...] a saw-like ovipositor. Larvae are light to yellowish green in colour, with a large head and bright red eyes. The colour of the adult depends on the food [...] that are curved back over the head. The prepupal and pupal instars do not feed and only move if disturbed. Damage symptoms Thrips cause damage to plants

Hemispherical scale

the species from most other soft scales. The size depends on the host plant and can vary from 2 to 4.5 mm. The young nymphs are white to yellowish, more [...] Damage symptoms The scales present are usually quite easy to see as shiny brown domes on leaf undersides close to the midribs. They produce large amounts [...] with a smooth surface. The colour is usually dark to sometimes lighter brown or almost yellow, with many evenly distributed light yellow flecks. The high

Thrips

refers to the eyelash-like fringe of hairs along both edges of the thin wings. There are more than 6,000 known species. Most are harmless, some are predators [...] plant and are fairly mobile. Immediately after hatching, the larvae begin to feed on plant tissue on the underside of the leaf. The larvae are smaller than [...] Thrips are tiny, slender insects that are typically less than 2 mm in length. They have a distinctive elongated shape, with long, narrow wings that are fringed

Pollination checklist outdoor

the crop immediately after delivery, or a maximum of one day later, to allow the bumblebees to gather food. Position the hives evenly throughout the plot [...] positioning, wait 30 minutes before opening the little doors to give the bumblebees to time to become calm again. Transportation and shaking movements can [...] with the hive. Download checklist Positioning advice Introduce bumblebees 4-7 days before flowering begins. Once the flowers open, the bumblebees will start

Amblyseius swirskii

leaf veins to rest. Their colour can vary according to the prey eaten, and varies from almost lucent whitish to opaque white or yellow. Due to their size [...] six legs, are the same colour as the eggs, and are only slightly larger. The larvae of Amblyseius swirskii do not need to feed. The nymphs are larger than [...] deutonymph, and 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