• Grape downy mildew

  January 1, 1970

  reducing photosynthesis and vine vigor Shoot and tendril symptoms Brown to dark lesions on young shoots and tendrils Distorted or stunted shoot growth Increased [...] spreads rapidly under warm and wet conditions, infecting leaves, shoots, and young berries, often resulting in severe yield and quality losses. Infections [...] infections Flower and cluster symptoms Infection of inflorescences and young clusters, particularly around flowering Browning, drying, and collapse of flower

• Gummy stem blight

  January 1, 1970

  mature fruits. The symptoms on stems, leaves and inside the fruits may occur together or individually. Life cycle and appearance of Gummy stem blight Mycosphaerella [...] on on all plant parts at all times Extra Silicon and/or Calcium nutrition hardens the cell walls and makes it harder for the fungi to enter the leaves [...] feasible in high-wire crops) Pick and remove dead and diseased leaves Prevent plant diseases by optimizing plant potential and crop resilience.

• Bacterial canker of tomato

  January 1, 1970

  on stems, leaves and fruits. Leaves and shoots wilt. On the lower leaves, blister-like white lesions occur, which later turn brown and may merge. The leaves [...] the name ring rot. Life cycle and appearance of Bacterial canker of tomato Clavibacter is seed-borne and tuber-borne and primary infection is mostly from [...] plants in greenhouse crops and by water in field crops, for example through splashes of rain or irrigation. Both in greenhouses and in the field, spraying

• Downy mildew of Cucurbits

  January 1, 1970

  stomata. Life cycle and appearance of Downy mildew Pathogens causing downy mildew are not fungi but Oomycetes and related to Pythium and Phytophthora. They [...] during propagation and maintaining a warm and dry climate in greenhouses. Use hygiene measures. Start clean, remove crop residues and prevent splashing [...] pumpkin, watermelon and squash. Damage symptoms Downy mildew pathogens infect mostly the leaves but occasionally also stems and fruits. They cause lesions

• New Packaging

  January 1, 1970

  included California, Florida, Michigan, and Georgia. The boxes were packaged with temperature data loggers on the inside and outside of the boxes. Plus, we inspected [...] Entonem , and Entermix are our most temperature sensitive products. We strive to continuously improve our processes, products, know-how, and services. [...] to improve its processes and materials. Koppert will save 2,860 pounds of Styrofoam per year. That is a yearly saving of 1.43 tons of Styrofoam that will

• Crazy roots, hairy roots, crown gall

  January 1, 1970

  break open, releasing many bacteria. These are dispersed by rain and wind and by humans and tools. Until now, no bacteria have been isolated from crazy roots [...] known as Agrobacterium tumefaciens or Agrobacterium radiobacter, Agrobacterium vitis, Agrobacterium rhizogenes and Agrobacterium rubi, n ow the first part [...] is changed to Rhizobium. Rhizobium rhizogenes or Rhizobium radiobacter causes crazy roots, hairy roots and crown gall. Damage symptoms The four pathogenic

• Bacterial wilt, brown rot

  January 1, 1970

  well in water and in many different soil types and on alternative hosts like weeds. It invades the plants through wounds or stomata and then spreads into [...] Verticillium or Fusarium wilts. Life cycle and appearance of Bacterial wilt, brown rot Ralstonia solanacearum is a quarantine organism in Europe and considered [...] pathogenic bacterium. It is a soil-borne disease and colonises the xylem, causing bacterial wilt and brown rot in a very wide range of potential host plants

• Diamond back moth

  January 1, 1970

  initially yellow or pale green and later darken. They are deposited singly or in small groups of two or ten eggs on both the upper and lower surface of [...] flower buds, flowers and young seed pods, causing loss of pods and seeds. Life cycle and appearance of Diamond back moth The oval and flattened eggs of the [...] preferentially in depressions, and rarely on stems or petioles. There are four larval instars. The body tapers at both ends and is green, sometimes suffused

• Southern European marshland pyralid

  January 1, 1970

  ornamental crop plants, such as roses and gerbera, aquatic plants, vegetable crops such as celery, pepper and lettuce, and weeds. The secretive habit of the [...] Late instar larvae burrow into soft woody or herbaceous plant stems causing withering or drying of crowns and possibly stem collapse. The holes bored into [...] in a tile-like fashion on both the upper and lower surface of leaves close to the veins, or low on the stem or stalk close to the ground. The pinkish red

• Aphids

  January 1, 1970

  black, brown, pink, or red, depending on the species and their stage of development. Some species may have distinctive markings or stripes on their bodies [...] damage to leaves, stems, and flowers by piercing the plant tissue and sucking out the sap. This can result in stunted growth, curling or distortion of the leaves [...] such as colour forms, or resistance to pesticides, remain unchanged and unsorted. The young aphids are born as developed nymphs and begin to feed instantly