• Lesser house fly

  comprises almost 300 different species of fly, including the lesser house fly , the latrine fly and a whole host of other manure-breeding flies . Fannia [...] Cryptosporidium and Toxoplasma , and bacteria such as Salmonella Life cycle and appearance of the Lesser house fly Lesser house flies and other Fannia spp [...] decaying matter. They can tolerate a wide range of moisture levels and are adapted to stay near the surface of near-liquid waste. Depending on temperatures

• American serpentine leaf miner

  the feeding spots. Life cycle and appearance of American serpentine leaf miner The life cycle of a leaf miner has the following stages: egg, three larval [...] tomato and melon. Loss of leaves also reduces yield. In full-grown plants of fruiting vegetable crops, however, a considerable quantity of foliage can get damaged [...] ornamental crops, this is usually of less significance. Seedlings and young plants can be completely destroyed as a result of the direct damage caused by leaf

• Western flower thrips

  leaves and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations [...] viruses affect a wide range of plants, and often a single host plant may be infected by both viruses. Life cycle and appearance of Western flower thrips The [...] occidentalis) develops in six stages: egg, two larval instars, prepupa, pupa, and finally the adult insect. The eggs of the western flower thrips (Fra

• Sciarid flies

  are particularly at risk. Life cycle and appearance of Sciarid flies The life cycle of sciarid flies has the following stages: egg, four larval instars [...] their short life. The males are usually smaller than the females. They are not fast fliers, and prefer damp areas in dark places, with a lot of organic material [...] General Sciarid flies constitute the family of Sciaridae. The species that cause most damage to crops belong to the genera Bradysia and Lycoriella . Lycoriella

• Spidex Vital Plus – Effective spider mite control in a sachet

  Spidex Vital Plus works well on all life stages of the two-spotted spider mite but prefers to feed on younger stages. Tim Bossinga, Product Manager: 'By [...] hotspots of spider mites, growers are now able to build of defense lines to both control the mites in the hotspots and prevent further infestation of the crop’ [...] by the sachets of Spidex Vital Plus allows Phytoseiulus persimilis to multiply in the sachet and disperse into the crop over a period of several weeks,

• Caterpillars

  crops. Biological control of caterpillars combines monitoring and control strategies that target different life stages of the pest: Beneficial nematodes [...] addition to consumption of the plant, caterpillars also spoil the plant with the large quantities of frass they leave behind. Life cycle of caterpillars Caterpillar [...] damage crops. Most of them feed on nectar. In contrast, the caterpillars have biting and chewing mouthparts and can devour large amounts of plant tissue. Many

• Tarnished plant bug

  The number of vegetative branches increases and plants develop multiple crowns; Transmission of diseases, such as soft rot and ring rot. Life cycle and [...] especially common across the eastern half of the continent, from northern Canada to southern Mexico. It is one of the most damaging Hemiptera species, known [...] edges of nurseries, and destroying favourable overwintering sites. Damage symptoms Lygus bug adults and nymphs attack the seeds, buds and flowers of plants

• Black vine weevil

  ornamental plants. Life cycle and appearance of Black vine weevil The life cycle of the black vine weevil consists of an egg, 6 or 7 larval instars, a pupal instar [...] within the stems of the plants. Both adult beetles and larvae are polyphagous and feed on a large number of plant species. High populations of larvae can destroy [...] caused by the feeding of the larvae on the roots. After the roots have been destroyed the larvae move into corms, rhizomes and stem bases of plants. Larvae can

• Beet armyworm

  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. A [...] greenhouse and the field, it is a major pest of sweet pepper. Damage symptoms Older caterpillars migrate to the top of the plant where they feed mainly on the [...] damage has considerable consequences for the growth of the crop. With a substantial population of caterpillars, the damage can spread to the stems, and

• Precautionary measures for product allergies

  doctor. In case of a life-threatening situation call the emergency medical services immediately. A combination of factors The level of sensitivity differs [...] or reduce any allergic reactions caused by the type of products mentioned above. Which products are of concern? This concerns the predatory mites , feeder [...] differs per person. Allergy problems can occur within just a few weeks of the first moment of contact, or could take years to appear. Not everyone who is exposed