Tobacco aphid

excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky. Black fungal moulds ( Cladosporium spp.) grow on this honeydew, contaminating [...] ) probably evolved from the peach potato aphid in the Far East and is a key pest of tobacco crops in both the United States and South America. The tobacco [...] tobacco aphid ( Myzus persicae subsp. nicotianae ) is also encountered in a range of crops in greenhouses, such as sweet pepper, aubergine, chrysanthemum, and

Treatment of bumblebee stings and allergies

Bumblebees are found in the natural environment in many countries. In addition, bumblebees and honeybees are used as pollinators in agricultural and ho [...] barbs. When a honeybee tries to withdraw its stinger, it tears loose from the abdomen, taking the venom gland with it. How to prevent bumblebee stings? Bumblebees [...] generally it starts after some hours. The swelling or itching may last for hours or even days. In some cases, the local reaction may spread somewhat; in this

Olive scale

citrus and olives and occurs widely in tropical regions and in greenhouses throughout the world. It is a severe pest in coffee and citrus. Many ornamental [...] causing build-up of sticky deposits on nearby surfaces. The honeydew may attract attendant ants and sooty moulds grow on the sugary deposits. Removal of large [...] two transverse crests and one median ridge that together form the letter H. On citrus, early stages might be yellow but they become darker later. First-instar

Crazy roots, hairy roots, crown gall

galls on the stems, which are first white and later turn brown. Only Rhizobium radiobacter causes galls and tumours on underground plant parts and on the [...] growth (crazy roots). In greenhouse vegetables, the roots overgrow the substrate and in severe epidemics the drippers get clogged. In tomato, excessive vegetative [...] not yet been defined. The assumption is that the bacteria survive in the soil, but it is possible that first infection is from the propagation material

Rancho Los Pinos is nature's ally

benchmark in the industry. Founded in 1950 by Don Luis Rodríguez Aviña, Rancho Los Pinos boasts over 70 years of agricultural expertise. On its 610 hectares [...] centers in San Quintín and Vizcaíno, Baja California, Rancho Los Pinos sets the standard for vegetable production, packing, and marketing in northwestern [...] that incorporating pollinators and biological control in our crops significantly reduced our reliance on high-impact pesticides," noted José Antonio Cruz,

Apple rosy aphid

plantaginea lays eggs in autumn in bark crevices on spurs and smaller branches, and on the base of buds of apple trees. The eggs hatch in spring and at first [...] aphid, Dysaphis plantaginea , is a serious apple pest. It is widespread in Europe and also occurs in Africa, North and South America, and Asia and can cause [...] By late May or June (in the northern hemisphere) multiple large colonies may be present on the trees. Winged aphids are produced in June or July. They move

Flies

major pest on soft fruits in Europe and North America. Sciarid flies and shore flies are mainly a problem in greenhouses. Their larvae live in the ground [...] Frass deposited on leaves or flowers in ornamental crops, lettuce, and herbs also causes cosmetic damage, and sometimes this can occur on such a scale that [...] flies). The larvae of these insects generally live on rotting plant material and are mostly found in the soil. The spotted wing drosophila , Drosophila

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 [...] Large colonies of aphids can build up on roses in spring and summer; sometimes shoots are completely covered by aphids. In summer, winged aphids spread the [...] rosae , is a serious and often abundant pest of roses. It is virtually cosmopolitan and widely spread in Europe. Life cycle and appearance of Rose aphid Aphids

Glasshouse potato aphid

presence in the crop. The wingless adult stage of the greenhouse potato aphid is rather squat, of medium size (1.8 - 3.0 mm long) and oval in shape. It has [...] two types of life cycles occur on the same host plant. The aphid can overwinter not only in greenhouses, but also outdoors in sheltered places. Damage symptoms [...] great variety in colour. When reproduction is asexual, the young aphids are born as developed nymphs. They immediately start to feed on plant sap and grow

Large blackberry aphid

large blackberry aphid is widely distributed in Europe and also established in New Zealand. It only feeds on cultivated and wild blackberries. Damage symptoms [...] triangular. The aphids overwinter as eggs on blackberry plants. After emerging in spring, the aphids mainly feed on the underside of leaves and start to reproduce [...] cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with unfertilized