Leaf stripe

stripes are formed at the base of the leaf and the leaf sheath. They gradually extend and become brown and chlorotic and may merge. Eventually this leads to the [...] may be stunted and heads may be distorted and failing to emerge from the sheath. Ear length and the number of kernels may be reduced and kernels may be [...] graminea is a disease of Barley that causes significant yield losses. Damage symptoms Symptoms first occur on the first, second and third leaf and subsequently

Onion thrips

inserted into the plant tissue with a saw-like ovipositor. Larvae are light to yellowish green in colour, with a large head and bright red eyes. The colour of [...] more developed wing buds and longer antennae that are curved back over the head. The prepupal and pupal instars do not feed and only move if disturbed. [...] throughout the world. It is found outdoors on many plants and particularly damaging on onions, leek, and in greenhouses on cucurbits, tomato, sweet pepper, eggplant

Wheat

aestivum ) is a cereal grain, but botanically a particular type of fruit referred to as caryopsis. Wheat originates from southwestern Asia, or more specifically [...] Mediterranean. The wheat plant is an annual plant which is sown either in spring or autumn. The plant flowers from about the end of May to the beginning of June [...] June. This flowering period is rather long (usually lasting longer than a week), because not all flowers of one single plant open at the same time. Recommended

Cyclamen main pest pressures

pressures Cyclamen: Main pests and control strategies. Thrips There are many species of thrips, but Frankliniella occidentalis , or western flower thrips (WFT) [...] most common species found in Cyclamen. If a biological control strategy is not implemented, both larvae and adult thrips will cause plant damage, by piercing [...] on the leaf surface, and sucking out the contents. This causes silver-grey spots on the leaves, with dark green spots of frass, and feeding marks to the

Bumblebee stings

resource only and should not be used for diagnosing or treating a health problem as it is not a substitute for medical care. If you have or suspect you may [...] may have a health problem, please consult medical care. Ces informations sont uniquement fournies à titre informatif et ne doivent en aucun cas être utilisées [...] Piqûres de bourdons et allergies Picaduras y alergias a los abejorros Użądleń trzmieli i alergii Hummelstiche und Allergien Hommelsteken en allergieën

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Conifer

are also referred to as Pinophyta, Coniferophyta or Coniferae . The plants are so-called gymnosperms or seed-bearing vascular plants. This means that their [...] not enclosed in an ovary. All existing conifers are perennial, woody plants and secondary growth occurs in the development of conifers. Conifers are usually