• Caterpillars

  more about What are caterpillars? Caterpillars are the larvae of butterflies and moths. Butterflies and moths form the order Lepidoptera, a very large [...] large group with more than 150,000 species, that are easily distinguishable from other insects. Many of the butterfly species that are active during the day [...] moths), which is the largest of all lepidopteran families. Most adults of this family are nocturnal. The caterpillars mostly pupate in the ground. Another

• Aphids

  more about What are aphids? Aphids form a single, very large group of insects: the super- family Aphidoidea, belonging to the order Hemiptera . The aphids [...] large part of the season an aphid population consists of viviparous females. As reproduction is asexual, the progeny of a single female is genetically identical [...] on the species, aphids can inflict various types of damage to a crop: Nymphs and adults extract nutrients from the plant and disturb the balance of growth

• Beetles

  more about What are beetles? Beetles belong to the order Coleoptera, a well-known group of insects that are easily recognizable on account of their hard [...] species, Coleoptera is the largest of all insect orders and displays an enormous variety of form, size and habit. A number of species are a serious pest in crops [...] mostly feed on the same food as the adults. The pupae do not make a cocoon and will already display many similarities with the adults. The adult beetles

• Knowing & recognizing

  giving you the ability to recognize the pest or disease you are up against by means of detailed illustrations and close-up photographs. The knowledge gained [...] photographs, and dozens of illustrations of the most prevalent pests, diseases and their natural enemies. This book provides the reader with the necessary information [...] characteristics. Shop now Koppert - A knowledge company The use of biological control is not a simple process, it has become a complex system in which many aspects

• Beneficial nematodes

  What are nematodes? Nematodes, commonly referred to as roundworms, are a diverse group of worms belonging to the phylum Nematoda. Nematodes are characterized [...] beneficial nematodes, are a group of parasitic nematodes that have a unique relationship with insects. These nematodes are natural predators of various insects [...] within a few days. The host becomes immobile and eventually dies due to the bacterial infection. Feeding and reproduction: The nematodes feed on the multiplying

• Tobacco aphid

  although they are also capable of dispersing through the crop by walking. The tobacco aphid tends to form denser colonies, closer to the top of the plant, than [...] from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation [...] General The tobacco aphid ( Myzus persicae subsp. nicotianae ) probably evolved from the peach potato aphid in the Far East and is a key pest of tobacco

• Aphidius colemani

  they are at low density. The behaviour of the female during egg-laying is typical of the Aphidiidae. First the host is examined by drumming with the antennae [...] disturbance of the aphid population by the presence of the parasitic wasp also has an effect: the alarmed aphids secrete a warning substance, which affects the [...] and form of the mummy do not, however, provide a reliable key to the species of wasp within: many braconid wasps that parasitize aphids produce a mummy similar

• Orius laevigatus

  behaviour of Orius laevigatus Orius laevigatus is a predator feeding on thrips . The prey is pierced with the mouthparts and the body contents are consumed [...] Both adults and nymphs of Orius laevigatus are voracious predators, adept at piercing and feeding on the soft bodies of their prey. The predatory bug Orius [...] Apply in groups of at least 50 insects in order to establish a population and encourage mating Make sure the material remains undisturbed at the introduction

• Biological seed treatment

  resilience of the plant, abiotic stress, the development of the root system, and the productivity of the crop. An overview of positive attributes of microbials [...] substances are applied to the seed in a powder form or as a liquid. An even layer covers the whole seed. In this way, the beneficial ingredients are available [...] available to the seed when it requires them. What are the benefits of biological seed treatment? Biological seed treatment has beneficial effects on the growth

• Diamond back moth

  toward the apex. The tips of the wings appear to turn upward slightly when viewed from the side. In males, the upper two-thirds of the forewings are dark [...] scales. The lower one-third of the forewing is ochreous-white, with a nearly white upper edge. In females, the upper two-thirds of the forewings are light [...] 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 moth (Plutella