Impatiens thrips

from egg to adult on the plant, specifically on the leaves. Eggs are deposited in the leaf tissue, while subsequent stages are found on the upper- and undersides [...] Pupation occurs on the leaf rather than on the ground. The prepupae and pupae remain immobile on the leaf tissue. Adults are found on both upper- and [...] trade in foliage plants. Impatiens thrips (Echinothrips americanus) has a wide range of hosts. In addition to many ornamental plants it also attacks sweet

Pea blight, leaf and pod spot

symptoms Ascochyta pisi causes spots on leaves, stems and pods of peas. The spots on leaves and pods are round, on the stems they are more elongated. The [...] General Ascochyta pisi is a fungal plant pathogen that causes A scochyta blight on pea (leaf blight or pea blight) and lesions of stems, leaves, and pods [...] years with non-host crops Bury or remove crop debris Prevent plant diseases by optimizing plant potential and crop resilience.

Amblyseius swirskii

Amblyseius swirskii preys on several other small organisms such as spider mites and tarsonemid mites. They can also feed on pollen, which is useful for [...] relative humidity below 60%. In tomato, use of Amblyseius swirskii is not recommended as it is hindered by the glandular hairs on the stems and leaves and does [...] cap to open the dosage hole Sprinkle material on leaves or pour into Diboxes Make sure the material remains on the introduction site for at least a few hours

Spider mites and other mites

Larvae, nymphs and adults cause damage to the host plant by feeding on plant sap. They mainly occur on the underside of leaves where they pierce the cells [...] other mite species can rapidly infest greenhouse and field crops, feeding on plant cells and causing leaf discoloration, reduced photosynthesis and lower [...] contents. The empty dead cells become yellow, and in many plants the damage can also be seen on the upper surface of leaves as small yellow dots. The destruction

Mealybugs and scales

(mealybugs). They suck the sap of plants and are mostly host plant specific. Apart from the damage they cause by sucking plant sap, mealybugs and soft scales [...] Mealybug & scale damage Although most species of mealybugs feed on the aerial parts of the plant, some species extract their nourishment from roots, whilst [...] harmful viruses. Mealybugs inflict damage on the crop in various ways: nymphs and females extract the sap from the plant, stunting growth and causing deformation

Trianum effectively controls Pythium in cucumber

roots. He puts two grams of Trianium-G on each mat before putting out the new plants in ‘duo’ pots (two plants in one rockwool cube). He decided to do [...] just ticking over. Those sorts of conditions have a bigger impact on the beneficials than on the thrips, which means I need to be alert. The same goes for [...] Thripex , in an overkill) keep thrips under control on the farm. Hendriks releases Montdorensis every week on half of his crop – the even rows one week, the

Beet armyworm

insecticides, and its ability to develop on wild vegetation during the summer. It is highly polyphagous, feeding on plants of more than 20 families. It is a serious [...] serious pest in greenhouses, where it feeds on ornamental plants such as chrysanthemum, gerbera, roses and potted plants. In both the greenhouse and the field [...] Damage symptoms Older caterpillars migrate to the top of the plant where they feed mainly on the growing tips. They produce large holes in the leaf, sometimes

Whitefly

consequences: If the population is very large, feeding on plant sap can affect the physiology of the plant, as a result of which growth is retarded. In full [...] Sooty moulds also develop on the leaves, reducing photosynthesis and transpiration. Viruses can be transmitted from one plant to another. Both T. vaporariorum [...] need a lot of nutrients for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and the excess is excreted

Horiver Disc

cover paper from one side of the trap Place trap around the stem of the plant with the sticky side down, just above the substrate Remove the silicone cover [...] when largely covered by insects and/or debris Dosage One Horiver Disc per plant. Storage temperature 0-32°C/32-104°F. Storage time See Best before date.

Cotton aphid

Aphis gossypii ) is an extremely polyphagous aphid found on more than 700 plant species. Crop plants attacked by this aphid include cotton, citrus, coffee [...] and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed [...] early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield. Plant sap is rich in sugars, but has a low protein content