Woolly apple aphid

Woolly apple aphid In contrast to other aphids , the life cycle and survival from year to year of the woolly aphid depends entirely on wingless, parthenogenetic [...] (without wax covering) on apple trees sheltering in cracks and under loose bark. The nymphs become active in late March or April (in the northern hemisphere) [...] and has been distributed to other parts of the world mainly via infested apple rootstocks. It can occasionally also be found in pear, quince and a few other

Fusarium head blight or scab

produce ascospores. In general, most Fusarium specieshave a similar life cycle. Fusarium overwinters for many years in the soil and on crop residues of infected [...] species. Fusarium is widespread and can infect a range of host crops. Many species are considered weak pathogens and can only infect wounded or stressed host [...] older, lower leaves. The spores are dispersed upwards to the ears by splashing rain drops or wind. On the infected ears, the typical pink spores are produced

Rose aphid

is dark in colour. The siphunculi are black and bent outwards. The rose aphid usually overwinters on rose bushes in the egg stage, although in mild winter [...] winter some adults may continue to reproduce parthenogenetically. Large colonies of aphids can build up on roses in spring and summer; sometimes shoots are [...] aphids. In summer, winged aphids spread the infestation to other rose plants and sometimes also to secondary hosts. Colonies are often present on rose bushes

Fall Armyworm

vary in colour from light tan to green to black. They have a distinct white inverted Y-shaped mark on the front of the head and four large spots on the [...] disperse in a radius of about 500 km (300 miles) before oviposition, which is sufficient for them to move from seasonally dry habitats to wet habitats in Central [...] clusters of 150-200 and can lay up to 2000 eggs in a lifetime. Eggs are white, pinkish or light green and spherical, and are usually laid on the underside of

Apple collar rot

optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as oospores (sexual overwintering [...] produced in the sporangia. For germination on above-ground plant parts, leaf wetness is required. Dispersal by wind and rain causes the pathogen to be returned [...] returned to the soil from infected plants. Dispersal in the soil happens via water, since the zoospores can readily move through water. This explains why

Plant Health

contributes to minimal susceptibility to opportunistic pathogens. Stored energy, lipids, and secondary metabolites Surplus photosynthetic energy leads to the storage [...] environmental impact. In conclusion, by reestablishing a systems approach to agriculture and integrating natural methods, growers can enhance plant resilience [...] natural approaches to plant health Embracing biological pest control Over the years, biological pest control has proven effective in managing pests without

Cotton aphid

individuals (up to 1.8 mm long) are usually dark green to black, while aphids produced in overcrowded colonies at a high temperature can be much smaller [...] great variety in colour. In greenhouses reproduction takes place by parthenogenesis, with unfertilized viviparous females continuing to produce new generations [...] the body colour, which can vary widely, from light yellow to light green, or even a green-black colour . This body colour depends on temperature, food source

Swirski Ulti-Mite

Presentation Sachets in cardboard box. Carrier Bran. Application Hang sachets in sheltered locations in the crop, not exposed to direct sunlight Sachets [...] Use for: Use for: Thrips Whiteflies Get in touch with us For the control of thrips and whitefly Can survive on pollen or other prey For very low or high [...] the control of thrips and whitefly Can survive on pollen or other prey For very low or high relative humidity Get in touch with us Pests Young larvae of

Blight of pepper

optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as oospores (sexual overwintering [...] produced in the sporangia. For germination on above-ground plant parts, leaf wetness is required. Dispersal is by wind and rain causes the pathogen to be returned [...] returned to the soil from infected plants. Dispersal in the soil happens via water, since the zoospores can readily move through water. This explains why

Tomato leaf miner

leaf tissue, leading to desiccation, premature leaf-fall and cosmetic damage. In (sub-)tropical areas this can lead to burning in fruit such as tomato [...] ground to pupate. A small percentage of the larvae remain hanging on the leaf and pupate there, sometimes on the upper surface but more commonly on the underside [...] crop damage in many parts of the world, including North Africa, Europe and northern Asia. In warmer regions, the insect is found outdoors but in temperate