• Shallot aphid

  and shallot, the aphids often occur at the end of the storage period causing malformation of new plants. Life cycle and appearance of The shallot aphid [...] females of the shallot aphid are 1.1-2.2 mm long and shiny brownish green to dirty yellow. Their legs and antennae are pale, apart from the ends of the antennae [...] antennae and the tarsi. The siphunculi are short an swollen towards the apex. The shallot aphid does not alternate to another host plant for overwintering

• Broad mite

  to the damage caused by viruses. The typical pattern of damage consists of malformation and distortion of the above-ground growth of the plant. The mites [...] appearance of Broad mite The life cycle of tarsonemid mites has the following stages: egg, larva, and adult. The larvae have three pairs of legs, adults [...] lay their eggs mainly on the underside of the leaf or on the fruit surface. The elongated, oval eggs are firmly attached to the surface and are rather large

• Black bean aphid

  caused through the transmission of plant viruses. Infestations start usually at the younger parts of the plant but can spread all over the plant. Nymphs [...] nutrients 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 [...] to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky

• Canadian Thrips in Greenhouses & Grow Rooms

  September 19, 2024

  by wind from fields to greenhouses and vice versa. They can be found on the underside of leaves in the top of the crop canopy, and rarely in the flowers [...] on the foliage, attacking the lower surface first. When the population increases and feeding progresses, they will move to the upper surface of the plants [...] Damage to the leaf will consist of distortion between the lateral veins, and discoloration of the leaf will begin to develop, and eventually, the leaves will

• Tomato leaf miner

  roughly one hour the larva crawls out of the leaf and falls to the ground. This occurs in the early morning. The larva crawls into the ground to pupate [...] bacteria enter the plant tissue via the feeding spots. Life cycle and appearance of Tomato leaf miner The life cycle of a leaf miner has the following stages: [...] percentage of the larvae remain hanging on the leaf and pupate there, sometimes on the upper surface but more commonly on the underside. The late third

• Crazy roots, hairy roots, crown gall

  have been isolated from crazy roots. This disease seems to be caused by a change in the hormonal system of the plant resulting from the Rhizobium infection [...] primary source of infection by Rhizobium rhizogenes has not yet been defined. The assumption is that the bacteria survive in the soil, but it is possible [...] including disinfection of tools, drippers, gutters etc. Adjust the work order in greenhouses to fit with the hygiene protocol Disinfect the nutrient solution

• Horiver Sticky Cards: A Powerful Tool for Pest Management and Prevention

  May 27, 2024

  monitoring the presence of pests in a particular area of a crop. By placing the cards strategically you can: Identify the pest species Assess the severity [...] severity of the infestation Monitor the population dynamics Monitor activity levels of pest over time By regularly inspecting the cards, you can: Track the number [...] maximum 30cm above the crop. For crops like cannabis and tropical houseplants, place the cards above the top of the canopy, but make sure the cards are far

• Limonica

  before use Push the centre of the cap to open the dosage hole Carefully sprinkle material on leaves Make sure the material remains on the leaves for at least [...] Pests Larvae of various species of thrips (first and second larval stages); eggs and larvae of greenhouse whitefly ( Trialeurodes vaporariorum ) and tobacco [...] Crops Do not use in tomato. Mode of action Predatory mites use their piercing mouthparts to extract the contents of their prey. Pack size 12,500; 25,000

• Better insights and digital advice with Natutec Scout

  insight into the level of infestation.’ Respond quickly and accurately on IPM A major advantage of the Koppert app is the ability of the consultant to [...] in the software reporting these kinds of measurement. The threshold value works as an alarm bell – as soon as the level of infestation exceeds the threshold [...] signal to the grower that he needs to take action. This is how Barry Enthoven of Lema Tomaten in Naaldwijk, the Netherlands sees it, manager of the 5.5 hectare

• Cannabis aphid

  The cannabis aphid closely resembles the hop aphid ( Phorodon humuli ), to the point that microscopic analysis of the head is required to distinguish [...] Damage symptoms The cannabis aphid is a sap sucker, like all aphids , and affected plants are damaged by the loss of this vital fluid. The following damage [...] light green or brown with dark green stripes running the length of the body. The winged forms have a dark head and thorax. Cannabis aphids have long antennae