• About bumblebees

  January 1, 1970

  A honeybee typically needs to visit a flower between 7-10 times, before it is fully pollinated Bumblebees lack the sophisticated communication system of [...] of flower visits and large transfer of pollen. Bumblebee pollination result is increased yield , better formed fruit , quality produce and faster ripening [...] honeybees Production of bumblebees The natural life cycle of the bumblebee is copied under laboratory conditions at our production facilities. In this way

• Chrysopa-E

  January 1, 1970

  conditions Chrysoperla carnea is effective in a wide temperature range including low temperatures (average > 12°C/54°F). It is most effective at 20-28°C (68-82°F) [...] lacewing attack their prey and suck their body fluids. Visual effect Prey is sucked out, shrivelled skins are difficult to find. Chrysoperla carnea larvae [...] preventively or in infested areas and repeated at weekly intervals until control is achieved. Consult a Koppert advisor or a recognized distributor of Koppert

• Plant Pollinator interactions in high temperatures

  January 1, 1970

  climates, it is assumed that the proper management of bees is sufficient to ensure good pollination. The single biggest problem is that if there is not enough [...] the humidity is too low or radiation is too high. strong, and the climate in the greenhouse is consistent. No easy feat, but the payback is more than worth [...] radiation is essential. Under challenging circumstances, proper monitoring of whether pollination is taking place, and whether the setting is 100% is vital

• Caterpillar control with nematodes

  January 1, 1970

  humidity is high (> 75%) continuously for several hours after application Temperature is ideally within optimal range of 13 – 30 °C. Solar radiation is low [...] search for their prey. Once they have found a host insect, they penetrate it through its natural body openings or skin. The nematodes then release the pathogenic [...] bacteria they carry with them. These bacteria kill the insect and digest it from the inside. The nematodes feed on the tissues of the dead caterpillar

• Ercal

  January 1, 1970

  least 3 times at weekly intervals or until control is achieved. Depending on the specific situation, it may be better to switch to the use of En-strip or [...] at least 20°C/68°F. Eretmocerus eremicus is still active at temperatures above 30°C/86°F. Combined use Ercal is best to be used in combination with generalist [...] wasp can be seen clearly within the parasitized whitefly pupae shortly before it emerges. Pack size 3,000; 15,000 pupae. Presentation Cardboard strips with

• V10

  January 1, 1970

  Infection by other PepMV isolates is severely compromised due to its degradation by RNA silencing. In this way the plant is equipped with a high level of [...] Preparation Shake the bottle well before use Use a disinfected bucket which is rinsed well with water before use Dilute 0.8 litre V10 with 8 litres of cold [...] F) Application Treat one leaf per stem Select a fully expanded leaf which is positioned below the growing point Using a sponge with a scouring pad wipe

• Amblyseius andersoni

  January 1, 1970

  relative humidity below 65%. In tomato, use of Amblyseius andersoni is not recommended as it is hindered by the glandular hairs on the stems and leaves and does [...] Amblyseius andersoni is a species of predatory mite and is used for biological pest control in horticulture and agriculture. These predatory mites are [...] surface of the leaves, often in the corner of the main vein and lateral veins. It is not possible to distinguish Amblyseius andersoni in the field from Amblyseius

• Corn earworm

  January 1, 1970

  features are its size in the final instar (approximately 35 mm) and its longitudinal stripes on the body. When the larva has fully developed, it stops feeding [...] Overview The corn earworm is a major pest affecting over 100 crops, of which the most prominent varieties are corn, sorghum, cotton, aubergine, pepper [...] organelle, leaving an entry hole as their only visible trace, which makes it necessary to open the crop to detect the pest. Life cycle and appearance of

• Brown soft scale

  January 1, 1970

  General The brown soft scale Coccus hesperidum is very common in tropical and sub-tropical regions and is also a common pest in greenhouses throughout the [...] produce enormous quantities of honeydew. This is usually the first visible symptom. Because of this, C. hesperidum is often attended by ants. The ants will clean [...] plants. The middle of the scale is always darker than the margins. Females reproduce parthenogenetically (without mating). It may appear that they bear live

• Crane flies

  January 1, 1970

  General The larvae of crane flies , called leatherjackets, live in the soil and feed on roots and shoots (which they pull into the ground of mainly grasses and cereal crops. The adults do not cause an