Bumblebee stings

diagnosticar ni tratar problemas sanitarios ya que no reemplaza la asistencia médica. Si tiene o cree que podría tener un problema de salud, consulte a

Downy mildew of Cucurbits

or surviving mycelium sporangia are formed, structures in which zoospores are produced. However, in downy mildews, sporangia often germinate directly and [...] is required. For most downy mildews, the optimum temperature is around 15 o C and the closer the temperature is to this, the shorter the leaf wetness period [...] density, good aeration during propagation and maintaining a warm and dry climate in greenhouses. Use hygiene measures. Start clean, remove crop residues and prevent

Leaf stripe

before use Use resistant cultivars Delay sowing in spring barley until soil temperature is higher than 12-15 o C Prevent plant diseases by optimizing plant [...] at soil temperatures above 15 °C. How to prevent Leaf stripe Produce seed in semi-arid environments without irrigation, to decrease the chances of infection

Early blight

General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause [...] 90% or when the leaves are wet. Small differences in optimum temperature occur between species, but in general the risk of Alternaria infection is larger [...] seed and propagation materials. Practice crop rotation, in particular when spores surviving in the soil are the main source of infection. Especially wheat

Black rot of carrots

General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause [...] 90% or when the leaves are wet. Small differences in optimum temperatures occur between species, but in general, the risk of Alternaria infection is larger [...] seed and propagation materials. Practice crop rotation, in particular when spores surviving in the soil are the main source of infection. Especially wheat

Verticillium wilt

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. Cutting the stalk [...] system usually stays mostly intact. In rose, branches die off from the top and purple brown stripes occur on the stem. In tomato, sometimes V-shaped lesions [...] the plant produces gum in the vessels. The presence of both the fungus and the gum causes the xylem vessels to get blocked, which in turn causes the plant

Neoseiulus californicus

californicus in sachets The predatory mite Neoseiulus californicus is also available in breeding sachets ( Spical-Plus , Spical Ulti-Mite ). In this case [...] predatory mites multiply in the sachet and disperse into the crop over a period of several weeks. Hang sachets in sheltered locations in the crop, avoid hanging [...] can also survive longer than Phytoseiulus persimilis in the complete absence of food, remaining in the crop to await the arrival of new prey. Life cycle

Amblyseius swirskii

Ulti-Mite ). In this case the predatory mites multiply in the sachet and disperse into the crop over a period of several weeks. Hang sachets in sheltered [...] feed on pollen, which is useful for instance in sweet pepper crops as the predatory mite can establish in the crop before the pest appears. Amblyseius [...] laid on the underside of leaves, often in the axil of veins. They are oval, white and are approximately 0.14 mm in diameter. The larvae have six legs, are

Phytoseiulus persimilis

mite (Tetranychus urticae) and has been used in many crops worldwide, mainly in greenhouses, but also in outdoor crops such as strawberries. This predatory [...] disappears rapidly in the absence of suitable prey. When prey is in short supply, mainly adult females will leave the prey patch in search of other spider [...] Phytoseiulus persimilis in sachets The predatory mite Phytoseiulus persimilis is also available in breeding sachets ( Spidex Vital Plus). In this case the predatory

Crazy roots, hairy roots, crown gall

growth (crazy roots). In greenhouse vegetables, the roots overgrow the substrate and in severe epidemics the drippers get clogged. In tomato, excessive vegetative [...] 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 [...] gutters etc. Adjust the work order in greenhouses to fit with the hygiene protocol Disinfect the nutrient solution in order to prevent biofilm growth inside