• Bacterial spot

  tomatoes. Damage symptoms Xanthomonas vesicatoria in tomato causes small, water-soaked spots on leaves which are first round and become more angular as they [...] black specks are seen on green fruits. The specks grow into brown spots that look like scab. These spots may be surrounded by a halo. In pepper, the spots [...] mildew infection, pepper plants shed the leaves that are severely infected. Humid conditions are conducive for lesion expansion. On the stems, long, narrow

• Loose smut of wheat

  Loose smut of wheat The seeds are infected during flowering and the infected seeds are the primary source of inoculum in the next crop. The fungus survives [...] primordia. It only becomes visible after head emergence. The teliospores that are formed on systemically infected seeds then infect neighbouring new seeds. [...] clean seed: Apply systemic fungicide treatment of seeds. Contact fungicides are not effective Apply heat treatment, but viability and germination rate should

• Premium Quality, Around The World

  March 6, 2023

  on time.’ Those two requirements are all-important: ‘Our products are alive; they are fragile. That’s why we pack them in high-tech, eco-friendly cool boxes [...] exactly the easiest task in the world. That task becomes even more complex if a product in the Netherlands needs to arrive in, say, Mexico or Kenya within [...] that goes beyond product quality. After all, no matter where in the world the products are headed, they need to arrive on time and with their quality perfectly

• Fusarium wilt

  whole plant wilts. Other symptoms are brown discolouration of the xylem vessels which can be seen when the stems are cut. In banana, whole plantations may [...] effectively with hot water) Use clean substrate in greenhouse crops Disinfect tools, machinery and irrigation water in greenhouses Prevent stress for the plants [...] Fusarium is widespread and can infect a range of host crops. Many species are considered weak pathogens and can only infect wounded or stressed host plants

• Verticillium wilt

  Verticillium species are non-specific plant pathogens. Many species are saprophytes, V erticillium albo-atrum and Verticillium dahlia e are the most important [...] leaves. These leaves are pale-green, then orange-yellow. In the beginning the plant seems to recover at night. The symptoms may occur only in parts of the plant [...] mostly intact. In rose, branches die off from the top and purple brown stripes occur on the stem. In tomato, sometimes V-shaped lesions are formed on the

• Amazone Plants continues the path of organic cultivation

  plants. In the end, everything more or less turned out fine – the plants in 12 cm pots were sold in 14 cm pots in the summer, and the plants in 14 cm pots [...] spring and in the autumn. Wim van der Meer explains, ‘Koppert is involved in a trial in which we are investigating whether Chrysopa eggs are effective at [...] therefore occur in the greenhouse that only become noticeable once the plants are in the hall. Fantastic results with Swirski-LD The main pests are the Western

• Biological solution against green shield bug

  June 23, 2021

  disappearance of chemical products, in combination with climate change, has resulted in an increase in the level of infestations in greenhouses. Controlling the [...] aubergine and cucumber greenhouses in southern Europe. This pest is also gaining ground in heated, high-tech greenhouses in north-western Europe and central [...] shield bugs can be controlled effectively in practice. Large-scale field tests in a number of countries are expected to confirm these results this year

• Wheat bunt

  types are distinguished. The filiform basidiospores fuse in the middle with a basidiospore of the other mating type so that H-shaped structures are formed [...] kernels, which in turn become a source of disease in the next season. Infection is strongly correlated to temperature and precipitation in the first 11 days [...] slightly stunted. Infected (bunted) heads are slender and remain green longer than healthy heads. The glumes are opened either on some or on all spikelets

• Bacterial wilt, brown rot

  wilt and brown rot in a very wide range of potential host plants. Damage symptoms In potato, field symptoms of Ralstonia solanacearum are wilting and yellowing [...] slime produced from wounds, which is not seen in Clavibacter -infected plants. In tomato, the youngest leaves are affected first. They show signs of wilting [...] quarantine organism in Europe and considered a bioterrorist organism in the United States. It is a commonly found soil-inhabitant in tropical and subtropical

• New Leaf Plants back Koppert biocontrol

  June 9, 2021

  pivotal role in New Leaf Plant’s successful IPM strategy New Leaf Plants produces over 2,000,000 finished plants per year, and 95% are propagated in-house. The [...] producer, based near Evesham in Worcestershire. Business owners David and Nicole Higginson relocated to their new 30 acre site in 2013, with a vision of becoming [...] Wisteria . “It is imperative that we manage pests and diseases in a preventative and pro-active way, in order to meet the high plant standards our customers expect