Pierce's disease of grapevine

normal and look stunted. Twigs and branches die and the foliage becomes thinner, but the trees don’t die of the disease. Olives: Scorch symptoms and desiccation [...] killed and the trees die. Life cycle and appearance of Pierce's disease of grapevine The bacteria live in xylem vessels in roots, stems and leaves and multiply [...] symptoms. More and more plant species are discovered as hosts. Xylella fastidiosa is best known in grapevine, stone fruit (peach and plum) and citrus, where

Ornamentals

Chafers

the roots can lead to yellowing and wilting of plants. Damage can be severe on young plants and especially in grassland and turf. There, secondary damage [...] birds and small mammals digging for the grubs to eat them. Life cycle and appearance of Chafers Adult Amphimallon sostitialis are 14-18 mm long and yellowish [...] smaller; about 13-15 mm long and reddish-brown in colour. The adult beetles fly in the evening, generally in June and July and land on trees to mate. During

Olive scale

pest of citrus and olives and occurs widely in tropical regions and in greenhouses throughout the world. It is a severe pest in coffee and citrus. Many [...] desiccation of tissues and dieback. Life cycle and appearance of Olive scale Young females are oval, 3-6 mm long and almost flat. Their shield is dark grey [...] grey or brown to black and has two transverse crests and one median ridge that together form the letter H. On citrus, early stages might be yellow but they

Pine processionary moth

definitive appearance and the reddish dorsal urticating hair patches on each body segment appear, arranged in pairs. The integument and hairs that clothe the body [...] volume growth. Defoliation damage and the presence of caterpillars are important on amenity trees in recreational and residential areas The caterpillars [...] silken cocoon. The pupae are about 20 mm in length, oval, and of a pale brownish-yellow colour that later changes to dark reddish-brown The life cycle of T

Roots Growers positive about Mycotal against whitefly

Whitefly is and remains a pernicious pest for growers of tomatoes and other crops. This is further aggravated by the fact that there are almost no effective [...] as possible, and we’ve seen how Mycotal really helps us to achieve that.’ So says Sam van der Knaap, who is responsible for cultivation and plant protection [...] definitive conclusions. We need more than one season of tests and analyses. That said, I did notice that the whitefly’s development cycle had clearly been inhibited

Cannabis

keeping cannabis plants healthy and productive. This is because cannabis can attract a lot of different pests and diseases that can cause problems. Biological [...] predictability, and aligns with consumer preferences for safe, eco-friendly products. Pest monitoring and scouting in cannabis crops Scouting and monitoring [...] proactive approaches involve regular and systematic inspection of crops to identify the presence and severity of pests and diseases. Growers use various techniques

Foot rot of cereals

primarily affects the roots and lower stem of cereal plants, leading to rotting and ultimately compromising plant health and yield. Microdochium nivale [...] in the group that causes seedling blight. Seedling blight causes pre- and post-emergence damping off. This can result in seedling death and poor establishment [...] temperatures and high humidity, the conidia germinate and penetrate the host's tissues. Inside the plant, the fungus colonizes the root and lower stem,

Black root rot of cucurbits

are slightly sunken and are mostly formed around the point of attachment of lateral roots and root hairs. The lesions may grow and encircle the root. The [...] black fruit rot. Life cycle and appearance of Black root rot of cucurbits Phomopsis sclerotioides survives in the soil and is a strong saprophytic competitor [...] colonize ‘clean’ or sterilized soil and substrate. It aggregates, so disinfection needs to be applied thoroughly and evenly. Phomopsis sclerotioides forms

Fusarium head blight or scab

between 4 and 35 °C, with an optimum between 25 and 28 °C. Germination only occurs at relative humidity (RH) above 80%. Warm (25-30 °C) and humid (RH above [...] different species. Fusarium is widespread and can infect a range of host crops. Many species are considered weak pathogens and can only infect wounded or stressed [...] root rot, foot and stem rot, leaf lesions, fruit rot, fusarium head blight in cereals, such as wheat (fusarium head blight wheat) and post-harvest decay