• Spotted Wing Drosophila

  January 1, 1970

  distinguished from males of other Drosophila species or SWD females by a large dark spot on each wing, where their common name is derived from. Females have [...] tubes which stick out of the fruit. There are three larval instars and in the third instar the larvae are about 3.9 mm long. The pupae of Drosophila suzukii [...] General Since the start of its invasion in 2008/2009, the spotted wing drosophila, which is originally from Asia, has spread extensively in North and South

• How to protect bumblebees in cold

  January 1, 1970

  impact of climate on pollination and colony quality is also time-sensitive. The longer unfavorable conditions persist, the greater the impact on the bumblebees [...] minimum 24-hour temperature of 15 ºC for optimal plant development. When your crop is healthy and the average 24-hour temperature is at least 15 ºC, you can [...] can ensure that there won't be any issues with the foraging activity of the bumblebees, leading to efficient pollination . Placement of hives in low temperatures

• Cannabis aphid

  January 1, 1970

  them. The hop aphid is common in North American hops production; there have been unconfirmed reports of Phorodon humuli developing on cannabis plants, as [...] Excess sap is excreted on leaves and flowers as a sticky “honeydew” which promotes the growth of black fungal moulds. White skin moults visible on the leaves [...] aphid or hemp aphid) is a very new pest to North America. It was first seen on cuttings originating from Colorado in 2016 and is now widespread throughout

• Trianum-P

  January 1, 1970

  Mode of action The mode of action of Trianum-P is based on the following mechanisms: Competition for space Trianum-P grows faster on the surface of the [...] less chance to develop. Parasitism of pathogens Trianum-P grows around the mycelia of the pathogens. The cell walls of the pathogens break down and the pathogens [...] Preparation Add 1 volume of Trianum-P to 5 volumes of water in a bucket Mix thoroughly Add the suspension to the required amount of water to obtain the final

• Beet armyworm

  January 1, 1970

  ability to develop on wild vegetation during the summer. It is highly polyphagous, feeding on plants of more than 20 families. It is a serious pest in [...] dorsally and a yellow band running the length of the body on either side, above which there is a black dot on each segment. The young caterpillars live in [...] worst damage is caused by attacks on flowers and buds. Life cycle and appearance of Beet armyworm The beet armyworm (Spodoptera exigua) is a small, nondescript

• RedStar places trust in Natutec Scout

  January 1, 1970

  seeing the trend. Is the level of whitefly infestation staying the same or is it going up or down? I want to see that at a glance. If there is an increasing [...] more trust in the result.’ From Jan’s point of view, it is not even about the exact number of whitefly stuck on the sticky traps. ‘No,’ he says, ‘I am more [...] for whitefly is no longer necessary. We photograph the sticky traps and immediately see how the level of infestation is developing.’ A lot of time saved

• Diamond back moth

  January 1, 1970

  groups of two or ten eggs on both the upper and lower surface of leaves, preferentially in depressions, and rarely on stems or petioles. There are four [...] but is now present wherever its cruciferous hosts exist and it is considered to be the most universally distributed lepidopteran species. It is highly [...] cases of severe infestation, entire leaves may be destroyed, leaving only the veins. The larvae feed also on the chlorophyll-rich green areas of stems

• Whitefly

  January 1, 1970

  Here are some of the common signs of whitefly damage: Yellowing of leaves: Whiteflies feed on plant sap, which can cause the leaves of infested plants [...] cuticle hardens. The growth of hairs on the insect depends on the leaf: the longer the hairs on the leaf, the longer the hairs on the insect. In other words [...] control is essential to maintain healthy, productive crops and prevent the spread of diseases. Biological control of whiteflies uses a combination of natural

• American serpentine leaf miner

  January 1, 1970

  pea, bean and potato. In greenhouses, it is mainly found on gerbera and chrysanthemum. Today the insect is widespread across the whole world. Damage symptoms [...] 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 [...] with ornamental crops, this is usually of less significance. Seedlings and young plants can be completely destroyed as a result of the direct damage caused

• Tomato leaf miner

  January 1, 1970

  larvae remain hanging on the leaf and pupate there, sometimes on the upper surface but more commonly on the underside. The late third instar larva, that [...] 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 [...] with ornamental crops, this is usually of less significance. Seedlings and young plants can be completely destroyed as a result of the direct damage caused