• Aphids

  (PVY) is transmitted by aphids in tomato in this way, as is the cucumber mosaic virus (CMV) in cucumber. Aphid control videos Take a look at the video [...] and rendering them unmarketable. At the same time, photosynthesis in the leaves is reduced, affecting production. The aphid’s saliva can induce strong ‘allergic’ [...] the progeny of a single female is genetically identical to the mother. In other words, they are clones. Because there is no genetic recombination, different

• Plant Disease Management

  preventing the disease from spreading further. Crop rotation Crop rotation is a fundamental strategy, which means avoiding planting the same crop in the same [...] disease cycles and reduces the buildup of pathogens in the soil. Disease-resistant varieties Another vital aspect of prevention is the use of disease-resistant [...] diseased plant material is essential to prevent the spread of pathogens. This practice is particularly important in containing the spread of diseases within

• Strawberry

  means that the fleshy, edible part of the fruit does not develop from the plant’s ovaries, but from the receptacle that holds these same ovaries. The so-called [...] strawberry is a well-known hybrid species of the genus Fragaria (collectively referred to as the strawberries). Technically speaking, the strawberry is a so-called [...] so-called ‘seeds’ (achenes) that are visible on the strawberry’s skin, are in reality the ovaries of the flower with a seed inside.

• Fusarium spp.

  This species is the only Fusarium that actually grows inside the vascular system of the host plant and spreads upwards inside the plants. The other species [...] upwards. At the same time, the plant produces gum as a defence mechanism to stop the fungus from spreading. This gum blocks the xylem and causes the wilting [...] wilting which is the main symptom of this Fusarium species. Higher up in the plant, the microconidia germinate and infect the surrounding tissue. On infected

• Pollination checklist tomato

  bumblebee bites onto the flower and makes the flower vibrate. This is known as buzz pollination. The imprints of the bumblebee's jaw on the flower (bite marks) [...] higher temperatures, the bumblebees stop flying. From the moment, the bumblebees will occupy themselves with cooling the hive until the temperature drops [...] are exposed is too high for a lengthy period, the hive and the colony may suffer damage. You should therefore position the bumblebee hive in the coolest spot

• Spidex Vital lives up to its promises

  game changer in spider mite control. It changes the rules of the game and is even more in control of spider mites . And the grower reaps the benefits.’ [...] calm to the farm.’ He states that the weather conditions have been favourable up to now. But, he says, the summer is yet to come. ‘Later on in the season [...] eggs.’ This corresponds with the explanation Sjaak received from consultant Ron Delissen and with what Koppert promised in the leaflet, he tells us. ‘Spidex

• Black sigatoka disease

  one month old. The symptoms run parallel to the veins. Within a few days, the spots become a few centimetres in size and turn brown with light grey centres [...] same symptoms. They enter the leaf through the stomata. After infection, hyphae emerge from the stomata and either develop into conidiophores with new [...] them, so the spores cannot be discharged from the lower leaves in the stack Use under-canopy (drip) irrigation to reduce splash dispersal Lower the humidity

• Charcoal rot

  Cutting the roots may show the same discolouration of the internal tissues of the main roots. In most crops, necrotic lesions on the roots are the first [...] reported. The density of the microsclerotia in the soil is directly related to disease incidence. Within 24 hours the fungus infects the roots of the host by [...] germ tubes. During the next two days, necrotic spots occur on the roots and the fungus spreads into the cortex and vascular tissue. In the infected host tissues

• Anagyrus vladimiri

  dimorphism: the female is about 1.5-2 mm in length and brown, with distinctive black and white banded antennae. The male is 0.8 mm in length and black in colour [...] Hang the bottle in the crop, out of direct sunlight Deploy in or near the mealybug colonies Leave bottles in the crop for at least two weeks Carry out [...] Anagyrus vladimiri The parasitic wasp Anagyrus vladimir is available in a bottle ( Citripar ). Remove the label from the bottle according to the instructions

• Broccoli

  About Broccoli is a tasty, green plant. When it comes to botanical classification, the broccoli plant is categorized as part of the Italica cultivar group [...] belongs to the species Brassica oleracea. Broccoli looks a lot like cauliflower, which belongs to a different cultivar group of the same species. The plant [...] head that is usually green. The head looks a bit like a tree and branches out from a single thick, edible stalk. Broccoli (both the head and the stalk) can