Crazy roots, hairy roots, crown gall

be caused by a change in the hormonal system of the plant resulting from the Rhizobium infection. Rhizobium rhizogenes puts a Ri-plasmid in the plant tissue [...] disinfection of tools, drippers, gutters etc. Adjust the work order in greenhouses to fit with the hygiene protocol Disinfect the nutrient solution in order to [...] growth (crazy roots). In greenhouse vegetables, the roots overgrow the substrate and in severe epidemics the drippers get clogged. In tomato, excessive vegetative

Kiwi

edible berries of various species of woody vines that belong to the genus Actinidia . The so-called golden kiwifruit or Actinidia chinensis has a soft and bronze [...] colored skin. The color of its flesh varies from a bright green to an intense yellow color. This particular kind tastes sweeter and has a more aromatic flavor [...] flavor, reminiscent of subtropical fruit varieties.

Potato aphid

euphorbiae ) is of North American origin, but is these days distributed throughout the world. It is a highly polyphagous species with a preference for [...] photosynthesis in the leaves is reduced, affecting production. Life cycle and appearance of Potato aphid Aphids have a complex life cycle, with both winged [...] adulthood. With each moult they shed white skin, betraying their presence in the crop. The adult potato aphid is a large, slender aphid with long, green

Glasshouse potato aphid

potato aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. When reproduction is asexual [...] on the abdomen at the base of the cornicles. Alate (winged) females are yellow-green, with a brown head, a dark thorax and a dark abdomen that has pale [...] potato aphid ( Aulacorthum solani) is a native European species of aphids , seriously affecting crops of sweet pepper in particular. These aphids further affect

Tomato pinworm

tomato pinworm in derived from the very small pinholes at the points of entry, which are often marked by the presence of a small amount of frass or droppings [...] laid. The larvae have a yellowish-grayish body, changing to gray with purple spots or completely purple, with a dark brown head. In total, the larva goes [...] itself and creating a green pupal cell which darkens to brown before emergence of the adult. The number of days in this instar varies a great deal since it

Cryptolaemus montrouzieri

effective in controlling large populations of mealybugs. Once the supply of mealybugs becomes inadequate, the ladybirds fly off in search of new prey. [...] montrouzieri is a species of beetle belonging to the family Coccinellidae. The beneficial insect is a small but highly effective predator in biological pest [...] appear to prey on all stages of mealybugs equally. Adult ladybirds are good fliers and can disperse over a large area in search of prey. Although Cryptolaemus

Tomato Disease Top 10 Topped by mildew and Botrytis

Green peach aphid

and appearance of green peach aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. When [...] is now a pest with a world-wide distribution. The green peach aphid ( Myzus persicae subsp. persicae ) is a particularly polyphagous aphid with summer [...] balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough in the season

Corn earworm

instars, over a total period of two to three weeks, developing a greyish colour and a black cephalic capsule in the first stage, but later adopting a variety [...] body, with a wingspan of 35 to 40 mm and a dark stripe on the side edge of the forewings and hindwings; they live for around two and a half weeks. [...] female lays small quantities of eggs, between one and three, in the hairs of green ears of corn. The larvae feed on the hairs of the young corn and on the

Tomato looper

covered with a few stiff hairs. In older caterpillars , each segment has a clear black dot above the lateral yellow lines. There are three pairs of prolegs [...] underside of leaves within folded edges, on random objects and on tomato fruit, often in a bunch of ripening tomatoes, however, it can also be found in the soil [...] caterpillar passes through 6 instars. It has a green head capsule and a yellowish-green body with a clear yellow longitudinal stripe on either side, and