• Phytophthora: symptoms starting to show

  April 7, 2021

  few weeks, many growers are starting to see a percentage of plants ‘fall out’ due to Phytophthora and other root disorders. There are limited, if any, [...] or look at taking steps to promote plant health , and help the crop get through to harvest. Developing and maintaining an active and resilient root zone [...] has shown that we can work to manage the symptoms. What triggers the ‘fall out’? Root diseases are opportunists. In many cases, the latent population is

• Heterorhabditis bacteriophora

  a nematodes control pests through a process called parasitism. When applied, these microscopic roundworms actively seek out beetle larvae. Once they locate [...] Heterorhabditis bacteriophora nematodes infect their hosts by entering through natural openings or the cuticle. Once inside the host, they release symbiotic [...] suitable host, Heterorhabditis bacteriophora nematodes enter the pest's body through natural openings. Once inside the pest, the nematodes release symbiotic

• Steinernema feltiae

  pests through a process called parasitism. When applied to the soil or sprayed onto plant foliage, these microscopic roundworms actively seek out their [...] sawflies. Steinernema feltiae nematodes infect their hosts by entering through natural openings, releasing symbiotic bacteria that kill the host within [...] suitable host, Steinernema feltiae nematodes penetrate the pest's body through natural openings. Once inside the pest, the nematodes release symbiotic

• Steinernema carpocapsae

  pests through a process called parasitism. When applied to the soil or sprayed onto plant foliage, these microscopic roundworms actively seek out their [...] pests. Steinernema carpocapsae nematodes infect their hosts by entering through natural openings. Once inside the host, they release symbiotic bacteria [...] suitable host, Steinernema carpocapsae nematodes penetrate the pest's body through natural openings. Once inside the pest, the nematodes release symbiotic

• Mirical

  at the top of the plant. The Macrolophus will climb out of the cardboard strips and spread through the crop. Bottle: Sprinkle material on clean, dry rock [...] introduction points by hanging 1 cardboard strip per plant and, at the end, shake out any remaining M. pygmaeus from the tray into the crop. Hang the cardboard [...] material thinly (maximum 1 cm thick) to enable the predatory bugs to get out of the carrier material Dosage The dosage of Mirical depends on climate, crop

• Anagyrus vladimiri

  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 adequate ant control [...] contents of the mealybug, going through five instars before pupating within the mummified skin of its host. The adult emerges through an irregular exit hole gnawed

• Garden chafer

  planted cuttings. The beetles are only active at night, taking round bites out of the leaves, starting from the edge. This damage is usually not a problem [...] for the garden chafer ( Phyllopertha horticola ). These flights are carried out by the males, who mate with females that stay close to the ground. Females [...] mating. The eggs elongate at laying but in time become nearly spherical through water absorption. Chafer larvae (grubs) have brown heads and whitish bodies

• Bacterial spot

  and become more angular as they grow. The centre of the lesions may fall out as they become drier. Under humid conditions, the spots may merge with lesions [...] high precipitation due to rain, fog or overhead irrigation. Infection is through stomata and wounds. The dispersal is in windblown water drops, mechanical

• Cannabis

  Leaf miners are a challenge to cannabis crops, and several species stand out as significant pests. Tomato leaf miner ( Liriomyza bryoniae ), Pea leaf miner [...] their eggs in cannabis leaves, and the larvae that hatch proceed to tunnel through the leaf tissue, creating distinctive winding mines that can severely damage [...] that further interferes with photosynthesis. Plant bugs Lygus spp. pierce through plant tissues and feeds on the sap, causing distorted growth and blemished

• Powdery mildew

  underside of the leaf, because the fungus infects the plant by entering through the stomata and there are more stomata on the underside of the leaf. On [...] Fungal spores germinate on the leaf surface and the germ tubes grow and branch out on the leaf surface. Small structures are produced, the haustoria, from which [...] of powdery mildew. Only in pepper, infection (by Leveillula taurica ) is through the stomata and the fungus grows inside the leaf. Later, the conidiophores