• Downy mildew of Cucurbits

  to Pythium and Phytophthora. They survive as oospores. From these oospores or surviving mycelium sporangia are formed, structures in which zoospores are [...] germinate directly and the germ tubes infect the plants either through the stomata or directly by penetrating the cuticula. For germination free water is required

• Grape downy mildew

  Grape downy mildew or grapevine downy mildew, caused by Plasmopara viticola , is one of the most important diseases in wine and table grape production [...] tendril symptoms Brown to dark lesions on young shoots and tendrils Distorted or stunted shoot growth Increased susceptibility of infected tissue to secondary

• Crazy roots, hairy roots, crown gall

  These pathogenic bacteria were formerly known as Agrobacterium tumefaciens or Agrobacterium radiobacter, Agrobacterium vitis, Agrobacterium rhizogenes and [...] ow the first part of the name is changed to Rhizobium. Rhizobium rhizogenes or Rhizobium radiobacter causes crazy roots, hairy roots and crown gall. Damage

• Bacilirid

  For use as a soil or growing media treatment Apply Bacilirid as a waterbased slurry to soil or growing media for prevention, control, or suppression of plant [...] For prevention, control, or suppression of soil and foliar diseases affecting greenhouse, container, ornamentals , vegetables, and fruits, including fruit [...] colonizes on developing root and shoot systems of plants, preventing, controlling, or suppressing by competition. Protection against root and soil borne pathogens

• Bacterial wilt, brown rot

  oozes from the wound. This is the way to distinguish it from Verticillium or Fusarium wilts. Life cycle and appearance of Bacterial wilt, brown rot Ralstonia [...] and on alternative hosts like weeds. It invades the plants through wounds or stomata and then spreads into the xylem vessels. In potato, it is tuber-borne

• Want To Know Whether Spical Will Be Effective? Check, check, and double-check!

  July 20, 2020

  The mites are easy to distinguish from each other: spider mites are green or red in colour, and the adults have two spots on their backs. They also move [...] This is also where you’ll be able to see whether your strategy is effective or not. If it is, the affected areas won’t grow in size. You’ll still be able [...] on the other hand, move very fast. They’re also translucent, a little white or sometimes brownish, and their body is pear-shaped. If many more predatory

• Asian citrus psyllid

  honeydew. Their feeding damages citrus by burning back new shoots or causing leaves to twist or notch as they mature. Worst damage is done when the insect is [...] found on a single spot. Nymphs are green or dull orange. First instar nymphs are docile and move only when disturbed or over-crowded. Development from egg to [...] 15°C/59°F. New adults reach reproductive maturity within 2 or 3 days, oviposition begins about 1 or 2 days after mating and adults live for several months

• Diamond back moth

  xylostella) are 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 [...] back is marked with a broad cream or light brown band along the back, which is sometimes constricted to form one or more light-coloured diamonds, thus [...] (Plutella xylostella) is suggested to have its origin in Europe, South Africa or East Asia, but is now present wherever its cruciferous hosts exist and it

• Southern European marshland pyralid

  the leaves. Late instar larvae burrow into soft woody or herbaceous plant stems causing withering or drying of crowns and possibly stem collapse. The holes [...] laid singly or in groups of 5 to 10 eggs, overlapping in a tile-like fashion on both the upper and lower surface of leaves close to the veins, or low on the [...] the stem or stalk close to the ground. The pinkish red eggs are about 0.5 mm in diameter and become steadily darker. Just before hatching, which occurs

• Aphids

  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 [...] out the sap. This can result in stunted growth, curling or distortion of the leaves, yellowing, or discoloration. They may also excrete a sugary substance [...] of aphid damage: Yellowing or distorted leaves: Aphids feed on the sap of plants, which can cause the leaves to turn yellow or become distorted. The damage