• Black sigatoka disease

  puddles and ensuring optimal ventilation in the crop Prevent plant diseases by optimizing plant potential and crop resilience. [...] Within a few days, the spots become a few centimetres in size and turn brown with light grey centres. These spots enlarge further and the tissue around [...] the lesions turns yellow and dies. Lesions merge and the whole leaf turns brown and ultimately dies. In cases of severe infection leaves may die within a

• Tobacco aphid

  chrysanthemum, and various pot plants and cut flower crops. Damage symptoms Nymphs and adults extract nutrients from the plant and disturb the balance of growth [...] the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough in the season, the death of young plants. Retarded [...] never glossy. Winged individuals have a brown-black head and thorax and a reddish abdomen. There is a dark brown spot on the abdomen and several transverse

• Phytophthora blight

  fungal growth on the leaves. The centre is grey-brown with a light-green edge. On the stem, elongated brown lesions occur, usually circling the stem. On potato [...] above-ground plant parts, leaf wetness is required. Dispersal is by wind and rain causes the pathogen to be returned to the soil from infected plants. Dispersal [...] circulation Disinfect recirculating nutrient solutions Prevent plant diseases by optimizing plant potential and crop resilience.

• Macrocheles robustulus

  pale white with a brown oval dorsal shield and brown legs. The larvae are white. Protonymphs and deutonymph are pale white with a brown shield, more clearly [...] material evenly on soil or planting medium (not on the plastic) The dosage of Macro-Mite depends on climate, crop, planting medium and pest density and [...] soil-dwelling insects. The mites appear in and on the soil and at the base of plant stems. Feeding behaviour of Macrocheles robustulus Predatory mites pierce

• Green peach aphid

  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 [...] Winged individuals have a brown-black head and thorax and a yellow-green to green or even reddish abdomen. They have a dark brown spot on the abdomen and

• Fusarium spp.

  yellow and wilt, mostly on one side of the plant. Finally, the whole plant wilts. Other symptoms are brown discolouration of the xylem vessels, which can [...] system of the host plant and spreads upwards inside the plants. The other species are dispersed upwards on the outside of the plant. Most Fusarium species [...] Fusarium species. Higher up in the plant, the microconidia germinate and infect the surrounding tissue. On infected plant parts, the typical boat-shaped pink

• Soybean

  black or brown, but also blue, yellow or green. When planting soybean plants, there is considerably more protein produced per acre than when planting other [...] Asia. It is extensively cultivated for its edible beans. The fruit of the plant is a hairy pod, that grows clustered in small bunches of three to five pods

• Banana

  be green or yellow, or red, purple or brown when ripe. Bananas grow in bunches downwards from the top of the plant. Nowadays, almost all edible, seedless [...] a nutritious fruit that grows from various large, herbaceaous flowering plants belonging to the genus Musa . Botanically speaking the fruit is a berry

• Southern European marshland pyralid

  wide range of hosts from 38 plant families. They include ornamental crop plants, such as roses and gerbera, aquatic plants, vegetable crops such as celery [...] sometimes attacking the stem of the plant as well as the leaves. Late instar larvae burrow into soft woody or herbaceous plant stems causing withering or drying [...] Adults of the European pepper moth ( Duponchelia fovealis ) are light to dark brown with a clearly visible white crinkled line on the forewing. The end of the

• Bacterial soft rot, bacterial stem rot

  of wounds Disinfest recirculating irrigation water Prevent plant diseases by optimizing plant potential and crop resilience. [...] causes bacterial stem rot as well as soft rot. Stem rot is first noticed when plants wilt at the time of first harvest or after that. The pith disintegrates [...] fruits, lesions first are small and sunken, water-soaked and light to dark brown. They are adjacent to wounds and natural openings at the stem end. Later