• Caterpillars

  crops. The most harmful caterpillars that occur in greenhouses belong to the Noctuidae (the noctuid or owl moths), which is the largest of all lepidopteran [...] family, the Tortricidae. The name ‘leafroller’ refers to the fact that the caterpillars often live in rolled-up leaves. Although some species are restricted [...] making them difficult to detect and control. In addition to consumption of the plant, caterpillars also spoil the plant with the large quantities of frass

• Cutworms

  into the growing stalk, disrupting the sap flow in the plant. Life cycle and appearance of Cutworms The adults of Agrotis spp. have pale grey to grey-brown [...] eggs. There are six to seven larval stages. Pupation takes place in the ground. Depending on the temperature, the development from egg to adult takes about [...] turn darker. They are laid separately or in batches on the ground, or on the plant close to ground level. The larvae are yellowish when hatching with a

• Whitefly

  belong to the order Hemiptera (true bugs ). Together with aphids and scale insects, they belong to the division Sternorrhyncha. The whiteflies form the family [...] is particularly important in ornamentals . The honeydew deposited on fruit makes it sticky. Dirt adheres to the fruit, and the growth of sooty moulds ( [...] affect the physiology of the plant, as a result of which growth is retarded. In full sunlight, leaves can wilt and drop. Such leaf damage can in turn influence

• Precautionary measures for product allergies

  taken to prevent possible allergic reactions. Exposure and precautionary measures Depending on the way in which you are exposed to the substances in these [...] plastic bag. Moistening the clothes in the bag prevents allergens and other particles from dispersing in the air when you open the bag. Possible allergic [...] Just as you can be allergic to cats, pollen, and dust mites, it is also possible to be allergic to the natural substances in predatory mites , feeder mites

• Working at Koppert

  many opportunities to develop their careers. Koppert is recognized as a training company in many fields. To develop your career within the company, Koppert [...] over the past 50 years, but despite its international character, Koppert remains a family company in which cooperation and respect for people and the environment [...] environment is important. The company is developing fast, so we are keen to draw people who will play a role in its further growth. There is much room for

• Leafhoppers

  growth and can lead to reduced yield and lower crop quality. In addition, leafhoppers can transmit plant pathogens, increasing the risk of disease spread [...] greenhouse and field crops. Effective leafhopper control is therefore essential to maintain healthy and productive cultivation. By combining monitoring with

• Citrus mealybug

  photosynthesis in the leaves also reduces flower and fruit production. In ornamental crops, the mere presence of mealybugs is sufficient to render the product [...] poses a problem in greenhouse horticulture, and in the tropics and sub-tropics on outdoor crops. The insect causes damage especially in fruit trees and [...] active in their search for a new feeding place and are capable of moving a reasonable distance over the plant. The male nymph attaches itself to the plant

• Plant Disease Management

  cause diseases in plants. The primary goal of biological control is to reduce the damage caused by these pathogens while minimizing the use of chemical [...] method used to manage and reduce the impact of plant diseases by utilizing beneficial organisms. This method relies on the use of living organisms to suppress [...] preventing the disease from spreading further. Crop rotation Crop rotation is a fundamental strategy, which means avoiding planting the same crop in the same

• Tea mosquito bug

  appendages. The life cycle is completed in 15 to 20 days in summer and 45 to 60 days in winter. It has several generations per year and in extreme winter [...] stages which suck the sap from young leaves, tender stems and buds. The toxic saliva of the insect is injected to the plant tissues at the time of feeding [...] 500 eggs. The eggs are laid in all tender parts of the plant. The freshly hatched nymphs are look like spidery in general appearance due to its elongate

• Pink Bollworm

  General The pink bollworm is important pest in cotton cultivation. The pink bollworm is native to South Asian countries and has spread to all cotton growing [...] emergence. The life cycle will be completed in 25 to 31 days under optimal conditions. In cool dry conditions, larvae may undergo diapause in small cocoon [...] saprophytic fungi to grow in it. Life cycle and appearance Pink bollworm lays eggs all over the cotton plant, preferably on or near the buds and flowers