• Avocado

  with only one seed. The berry is green-skinned and fleshy and its shape resembles a pear or (large) egg. The avocado tree belongs to the flowering plant family [...] Lauraceae . Commercially speaking, avocados are very valuable and the fruit is produced in tropical and Mediterranean regions. Avocados ripen only after they are [...] About The avocado ( Persea americana ), also named ‘alligator pear’ is a tree originating in South Central Mexico. Its nick name points to its fruit which

• Black root rot of cucurbits

  roots. The lesions are slightly sunken and are mostly formed around the point of attachment of lateral roots and root hairs. The lesions may grow and encircle [...] away. Infection in the early stages of the crop results in stunted growth and smaller leaves with an intense green colour. Severe infection in this stage may [...] a few of the roots but in severe cases all roots may be infected. At the final stage of the disease, only vascular tissue remains because the cortex (outer

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• Grape downy mildew

  viticola , is one of the most important diseases in wine and table grape production worldwide. The disease spreads rapidly under warm and wet conditions, infecting [...] shoots, and young berries, often resulting in severe yield and quality losses. Infections during flowering and early berry development pose the greatest [...] turning brown and necrotic as the disease progresses Premature leaf drop in severe infections, reducing photosynthesis and vine vigor Shoot and tendril symptoms

• Thrips

  on leaves and the black dots of their excreta indicate their presence in the crop. At a later stage, the empty cells become desiccated and the adjacent [...] are among the most challenging pests in greenhouse and field crops. Their feeding and virus transmission cause leaf deformation, silvering and fruit damage [...] cause damage to the plant by piercing the cells of the surface tissue and sucking out their contents, causing the surrounding tissue to die. The resulting

• Diamond back moth

  quite small and active. Except for the first instar, which mines in the leaf tissue, the larvae are voracious surface feeders. The pupae of the diamond back [...] antennae. The hindwings are narrow, pointed toward the apex. The tips of the wings appear to turn upward slightly when viewed from the side. In males, the upper [...] white upper edge. In females, the upper two-thirds of the forewings are light ochreous and the markings are like those of the males. The back is marked with

• Beet armyworm

  caterpillars, the damage can spread to the stems, and in the worst cases to the fruit. This often leads to the entire contents being consumed. In ornamental [...] even black. The colour and pattern of the caterpillars is highly variable and depends partly on the host plant, the stage of development and the climate. [...] top of the plant where they feed mainly on the growing tips. They produce large holes in the leaf, sometimes stripping the leaf down to the mid-rib. Flowers

• Red palm weevil

  thin rostrum that holds the antennae and tiny mandibles. The size and colour of adult weevils greatly varies. Most individuals in the Mediterranean area are [...] individually into soft tissues mainly at the base of living fronds. Larvae are present and feed in the softest and most humid living tissues (growth areas) [...] morphology of the palms, direct or indirect destruction of the apical bud will lead to the death of the plant, which makes the red palm weevil ( Rhynchophorus

• Bedding plants

  perennial plants used in gardens and parks. There is a wide range of plants especially produced to demonstrate coloured flowers in spring and summer. They are [...] are easily divided in four different categories: Hardy annual plants which are planted directly into the soil already early in the season: sunflower, poppy [...] eschscholzia Tender annual or perennial plants are planted in a protected environment in late winter: begonia, chrysanthemum, arguranthemum, lobelia,

• Trial results Onion fly and Fusarium wilt

  Protection “The general conditions of Koppert (Koppert B.V. and/or of its affiliated companies) apply. Only use products that are permitted in your country/state [...] soilborne diseases and onion fly Effective results in onion crop with Biological Crop Protection Proven results Before our products enter the market, they [...] extensively researched all across the globe. Making sure we can offer you the best solutions for a high yielding and healthy crop. Trial results with