Stratiolaelaps scimitus (Hypoaspis miles)

approximately 0.3 mm in length. Best conditions for use of Stratiolaelaps scimitus For optimal results the soil has to be moist, rich in organic matter and [...] scimitus is 15°C/59°F. How to use Stratiolaelaps scimitus The predatory mite Stratiolaelaps scimitus ( Hypoaspis miles) is available in a cylinder ( Entomite-M [...] The mites appear in and on the soil and at the base of plant stems and offer a sustainable and environmentally friendly alternative to chemical pesticides

Black sigatoka disease

three days under optimal conditions (humidity close to saturation and temperature above 20 °C). How to prevent Black sigatoka disease Use resistant cultivars [...] one month old. The symptoms run parallel to the veins. Within a few days, the spots become a few centimetres in size and turn brown with light grey centres [...] spores cannot be discharged from the lower leaves in the stack Use under-canopy (drip) irrigation to reduce splash dispersal Lower the humidity as much

Cotton aphid

yield. Plant sap is rich in sugars, but has a low protein content. Aphids therefore need to extract large quantities of sap to get sufficient protein. The [...] great variety in colour. In greenhouses reproduction takes place by parthenogenesis, with unfertilized viviparous females continuing to produce new generations [...] the population. Large individuals (up to 1.8 mm long) are usually dark green to black, while aphids produced in overcrowded colonies at a high temperature

Early blight

sporulation. Species may differ in specific symptoms. Damage symptoms Alternaria solani causes small green to dark brown spots to occur on leaves. Those spots [...] of leaves, Alternaria solani can spread to the flowers (especially dangerous in crops for seed production) and to the crown. Sporulation of Alternaria occurs [...] wounds and stomata. Spores are dispersed by wind and in some species through the splash of rain. How to prevent Early blight Remove crop residues, weeds and

Eretmocerus eremicus

specialized mouthparts to feed on the internal tissues of the whitefly, leading to the host’s death and contributing to a decline in whitefly populations [...] items How to use Eretmocerus eremicus The natural enemy Eretmocerus eremicus is available on cardboard strips as single species ( Ercal ) and in combination [...] and tear off the strips opposite to the mounting hole Make sure not to touch the pupae during handling Suspend the cards in the crop, if possible approximately

Anagyrus vladimiri

bottle according to the instructions Hang the bottle in the crop, out of direct sunlight Deploy in or near the mealybug colonies Leave bottles in the crop for [...] products Citripar Expand all items How to use Anagyrus vladimiri The parasitic wasp Anagyrus vladimir is available in a bottle ( Citripar ). Remove the [...] female is about 1.5-2 mm in length and brown, with distinctive black and white banded antennae. The male is 0.8 mm in length and black in colour. Anagyrus vladimiri

American serpentine leaf miner

cosmetic damage. In tropical and subtropical areas this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In full-grown [...] exit hole in the leaf with its mouth parts. After roughly one hour the larva crawls out of the leaf and falls to the ground. This occurs in the early morning [...] miners cause damage to plants both directly and indirectly. The most direct damage is caused by the larvae mining the leaf tissue, leading to desiccation, premature

Downy mildew of rose

over. In cabbage the stem is also infected in severe epidemics. In blackberry, red stripes may occur on the stems and petioles due to systemic infection [...] This is, in fact, the sporulation of the pathogens extruding from the stomata. In lettuce, the foot is infected first and this causes the plant to fall over [...] Peronospora sparsa overwinter in living host plants like blackberry. How to prevent Downy mildew Choose resistant cultivars Use a wide crop rotation with

Trianum-P

Add 1 volume of Trianum-P to 5 volumes of water in a bucket Mix thoroughly Add the suspension to the required amount of water to obtain the final spray, [...] filters are clean (spores can attach themselves to organic material in filters) To increase spore attachment to the roots, avoid run-off and excess drainage [...] a spp. and Microdochium spp. In addition, Trianum-G promotes plant growth and uniformity. Crops Trianum-P can be used in most crops. Mode of action The

Pea blight, leaf and pod spot

°C and the spores require water for dispersal. How to prevent Pea blight, leaf and pod spot Grow peas in arid regions Use clean seed Use a minimum crop [...] ) causes foot rot in peas, whereas Ascochyta pisi does occur sometimes at the stem base but is not part of the foot rot syndrome in peas. Infected seeds [...] elongated. The lesions are light brown, sunken and surrounded by a dark brown to red-brown border. The first infection is often on the primary leaves. The