• Tobacco whitefly

  wings of the tobacco whitefly ( Bemisia tabaci ) are held vertical and parallel along the body. Damage symptoms The larvae of whitefly need a lot of protein [...] protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and the excess is excreted as honeydew, with [...] If the population is very large, feeding on plant sap can affect the physiology of the plant, as a result of which growth is retarded. In full sunlight

• Trianum-P improves open field pepper production in Portugal

  Agrícola Militão, in the town of Ribatejo, in a pepper crop for the processing industry. Pedro Militão is one of the two owners of the company Sociedade Agrícola [...] the end of their cycle with a high level of plant health and vigour so that the harvesting machine can do its work well. ‘With the introduction of mechanical [...] practices that respect the environment. ‘Without a doubt it is a product with a lot of potential for pepper cultivation,’ says Pedro Militão. The good results

• Air Blowers to distribute and apply beneficials

  especially developed for effective and efficient distribution of natural enemies. This uniform distribution results in effective biological pest control [...] by using one of our blowing systems instead of hand application Introduce several predatory mite species in one way Uniform distribution of natural enemies [...] pot, ensures a uniform release of carrier material containing natural enemies. The airflow from the fan guarantees the even distribution of this material

• Garden chafer

  Phyllopertha horticola ) is a beetle from the Scarabaeidae family. It does most of its damage in the larval stage when it feeds on roots of grasses and clover. [...] The adults feed on the leaves of trees like oak, hazelnut and birch and on the flowers and developing fruits of, for instance, roses and cherries. Damage [...] most of its damage in the larval stage when it feeds on the roots. First instar larvae mainly feed on small humus particles, second instar larvae on fine

• Cactus mealybug

  pupa. After a complete metamorphosis, a winged male emerges from this pupa. The males lack mouth parts and are incapable of feeding. They have a brief lifespan [...] cactearum ) is a pest of cacti and other succulents. It was first described in England but its origin is not clear. It is now found on many greenhouse-grown [...] occasionally be found on crowns, roots. and flowers. Depending on the host plant species, infestations with cactus mealybug cause discoloration of the plants and

• Cutworms

  observed as a cutting of young seedlings, often causing death of the cut seedlings. Sometimes wilting is observed because of partial cutting. A larva often [...] cycle and appearance of Cutworms The adults of Agrotis spp. have pale grey to grey-brown forewings with a faint kidney-shaped marking and a red spot. They have [...] segetum . The larvae of these moths usually feed on roots and plant parts close to the ground, thereby often cutting the stems of young plants. This is

• European red mite

  is mainly a pest of fruit trees (apple, pear, plum and cherry). However, it can attack a large scale of other woody plants and is occasionally a problem [...] apple growing areas of the world. European Red Mite Control with Predatory Mites Damage symptoms Feeding of European red mites on leaves of trees causes initially [...] leaves can drop. Life cycle and appearance of European red mite The European red mite feeds mainly on the undersides of leaves but moves to upper leaf surfaces

• Hemispherical scale

  shiny brown domes on leaf undersides close to the midribs. They produce large amounts of honeydew causing build-up of sticky deposits on nearby surfaces [...] moulds grow on the sugary deposits. Badly fouled leaves may drop prematurely. Life cycle and appearance of Hemispherical scale An adult female of S. coffeae [...] depends on the host plant and can vary from 2 to 4.5 mm. The young nymphs are white to yellowish, more oval in form and with a raised H-pattern on the dorsal

• Crazy roots, hairy roots, crown gall

  cause the growth of galls on the stems, which are first white and later turn brown. Only Rhizobium radiobacter causes galls and tumours on underground plant [...] seems to be caused by a change in the hormonal system of the plant resulting from the Rhizobium infection. Rhizobium rhizogenes puts a Ri-plasmid in the plant [...] vegetative growth occurs. Life cycle and appearance of Crazy roots, hairy roots, crown gall The primary source of infection by Rhizobium rhizogenes has not yet

• Boisduval scale

  can be a pest of orchids, palms, pineapples, bananas and many other plants. Damage symptoms The first sign of Boisduval scale is the presence of the scales [...] scales on upper and lower leaf surfaces, fruits, and stems of plants. On palms, Boisduval scales are normally found on the leaves and stems. Toxic saliva [...] in diameter and circular or oval. The cast skins of the nymph form a light yellow spot near the centre of the scale called the exuvium. Adult females can