• Woolly apple aphid

  appearance of 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 [...] Eriosoma lanigerum , is a serious worldwide apple pest. It is probably of North American origin and has been distributed to other parts of the world mainly [...] aphid does little direct harm to mature trees but the sticky masses of “wool” may contaminate leaves and fruits and can be a nuisance at harvest time. Life

• Aphidius colemani

  aphids die as a result, many will survive and migrate to other plants to begin new colonies. To avoid becoming covered in their secretions, the parasite will [...] subsequently develop. Once larval development is complete the larva spins a cocoon inside the aphid cuticle, causing it to swell. The cuticle turns from a hard [...] however, provide a reliable key to the species of wasp within: many braconid wasps that parasitize aphids produce a mummy similar to that of Aphidius spp

• Rose aphid

  infestation to other rose plants and sometimes also to secondary hosts. Colonies are often present on rose bushes throughout autumn until their development is hampered [...] of buds and new shoots. Foliage and flowers are often disfigured and contaminated with sticky honeydew on which black sooty moulds develop. Life cycle [...] and appearance of Rose aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses

• Charcoal rot

  Macrophomina phaseolina is a common soil fungus in warmer regions, causing charcoal rot. It has a very wide range of host crops, many of which are economically [...] corn stalks, survival of up to 1.5 years has been reported. The density of the microsclerotia in the soil is directly related to disease incidence. Within [...] conditions. In field crops in temperate regions it is therefore not a problem. How to prevent Charcoal rot Plant in fields with no history of the disease

• Fusarium wilt

  General Fusarium is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many species are considered [...] not be suitable for planting for many years to come. Life cycle and appearance of Fusarium wilt Fusarium oxysporum has many different formae speciales which [...] Fusarium oxysporum life cycle, is similar to that of most Fusarium species. Fusarium overwinters for many years in the soil and on crop residues of infected

• Fusarium spp.

  Fusarium spp. is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many species are considered [...] spp. Fusarium is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many species are considered [...] best-known. The mycotoxins are toxic to mammals so maximum levels have been determined. Fusarium sambucinum (a.k.a. F. sulphureum ) causes dry rot of potato

• Powdery mildew

  noticeable. In case of a severe epidemic, the fluffy colonies also appear on the upper side of the leaves. Many sweet pepper cultivars react to powdery mildew [...] and makes it harder for the fungi to enter the leaves To reduce chances of powdery mildew in greenhouses, it is advised to first ventilate by only opening [...] General Powdery mildew is a fungal disease that is caused by many different species of fungi such as Erysiphe, Podosphaera, Oïdium, Leveillula. Damage

• Regional Head and Sales Officer

  candidates with at least 3-5 years of relevant experience in the agri-input sector to join our sales and marketing team for developing sales in different parts [...] Computer literate Willing to travel extensively and a flexible approach Are you interested? Send us your CV and motivational letter to info@koppert.in [...] Pradesh Regional Head Role Responsibilities: Developing and managing Sales team and building the team to achieve the success. Aggressively appointing and

• Southern blight

  plants. The sclerotia can survive in the soil for a minimum of a year. The telemorphic phase corresponds to the basidiomycetes Athelia rolfsii, but this is [...] the stand, meaning it is very often necessary to replant, which increases the crop's production costs. How to prevent southern blight Life cycle and appearance [...] effect, since the fungus needs to grow saprophytically on organic substrate before acting as a pathogen. Injuries make a host more susceptible, but it can

• Bacterial wilt, brown rot

  solanacearum is a plant pathogenic bacterium. It is a soil-borne disease and colonises the xylem, causing bacterial wilt and brown rot in a very wide range [...] conditions are more favourable. This makes it more difficult to recognize infected fields. How to prevent Bacterial wilt, brown rot Use disease free propagation [...] Quarantine measures are in place, including a five-year ban on using a field for potato cropping after infection of potatoes from that field has been established