Biological products are an essential aspect in the cultivation of today's tomato crops. But why, precisely, is it such a good idea to choose IPM or integrated crop protection? Will you also take the step to implement biological strategies in your crops? If so, Biobest offers you a wide range of solutions that can be used safely at any time. You can utilise:.
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PlantVillage is an open access public resource at Penn State that aims to help smallholder farmers grow more food. Please consider donating LINK and helping us, help smallholder farmers. Donate Contribution PlantVillage is an open access public resource at Penn State that aims to help smallholder farmers grow more food.
Content Content 1. Diseases - Fungal. Pests - Insects. See questions about Tomato. Tomato flower. Immature tomato. Ripening fruits. Unripe tomato fruits. Tomato leaf close-up. Tomatoes ripening on the vine. Tomato stems and foliage. Ripe tomato fruit. Tomato cages give the plant support and keep fruit off of the ground.
Staked tomatoes growing in a raised bed. Tomatoes with trellis. Young tomato plant positioned within a cage. Tomatoes growing with a stake support system. Creative tomato trellis. Tomato trellis. Square tomato cage. Common Pests and Diseases Diseases. Sunken, and circular lesions on the fruit is a characteristic symptom.
Anthracnose on tomato fruit. Anthracnose symptoms on tomato leaf. Large lesion on tomato fruit. Fruit symptoms are the most common although stem, leaves and roots can also be infected; disease causes characteristic sunken circular lesions on the fruit; the indentations on may have visible concentric brown and yellow rings; lesion centers turn tan in color as they mature and become dotted with small black fungal fruiting bodies microsclerotia ; lesions can grow very large.
Management Avoid sprinkler irrigation when fruit is ripening; rotate crops with other non-solanaceous plants. Black mold symptom.
Canker at the base of plant, blackish growth of Alternaria conidia. Black mold infected tomato leaves. Disease causes the appearance of black or brown lesions on the surface of ripe fruit; lesions may be tiny flecks or may be large patches of decaying tissue; during periods of humid weather, the lesions may become covered in black, velvety spore masses.
Disease is found wherever tomatoes are grown; ripe fruit become increasingly susceptible to the fungus the longer they stay on the vine after ripening. Management Cultural control methods such as avoiding wetting the foliage when watering and harvesting fruits as soon as they are ripe can help to reduce the incidence of the disease; in areas where disease is a persistent problem, chemical control may be necessary with an appropriate fungicide; fungicide is usually applied weeks prior to the first anticipated fruit harvest.
Early blight symptoms on tomato foliage. Fruit symptoms include small black v-shaped lesions at the shoulders of the fruit. A fruit in the field with severe infection.
Concentric leaf lesions can be seen on infected leaves. Severely blighted leaves. Early blight symptoms on tomato stem. Blighted tomato plants. Sporulation from an infected fruit lesion. The fungus survives on infected tomato debris. The leaves completely collapse in severe infection. Alternaria stem canker symptoms. The canker may enlarge to girdle the whole stem. Early blight symptoms on tomato fruit. Close up of early blight leaf lesion. Oval shaped lesions with a yellow chlorotic region.
A chain of Alternaria spores. A dark lesion at the shoulder of the fruit. Disease can spread rapidly after plants have set fruit; movement of air-borne spores and contact with infested soil are causes for the spread of the disease. Management Apply appropriate fungicide at first sign of disease; destroy any volunteer solanaceous plants tomato, potato, nightshade etc ; practice crop rotation.
Symptoms of fusarium wilt on tomato foliage. Fusarium wilt in tomato field. Yellowing of the leaves on one side of the plant. Plants infected with Fusarium wilt. Discolored tomato stem tissue caused by fusarium wilt.
Collapse of tomato plant infected with Fusarium wilt. Vascular discoloration caused by Fusarium wilt infection. Fusarium wilt symptoms may appear on one half of an infected plant indicating the blockage in the vascular system on that side.
Seedling showing browning of the vascular system. Whole plant dying. Wilting tomato plants with characteristic yellow discoloration at top of plant. Wilting tomato plants. Yellowing, wilting, and necrosis of older leaves on one side of the plant. Symptoms of Fusarium wilt may first appear as yellowing and wilting of leaves on one side of the leaf midrib or plant; one-sided symptoms are caused by a blockage in the vascular system supplying the symptomatic side of the plant; as the disease progresses, older leaves become necrotic and the plant begins to wilt; fruit on infected plants is smaller and yield is reduced; damage to leaves makes fruit susceptible to sunscald; stem symptoms may be mistaken for bacterial wilt but a bacterial ooze test will be negative; stem tissue becomes discolored brown.
Disease emergence favors warm, moist soil Fusarium wilt is not a major issue in tomato production, however, the disease can still cause minor losses.
Management Plant resistant varieties; sanitize all equipment regularly; control root knot nematodes; rotate crops away from tomato for several years. Gray mold symptoms on tomato fruit. Gray molds infected stem. Sporulation on infected stem. Infected fruit. Gray mold symptoms on tomato stem. Infected stem. Symptoms on stem. Infected foliage. Gray mold is usually associated with wounds on plants; can develop in relatively cool conditions.
Management Liming soil to increase calcium content can help to reduce plant susceptibility to gray mold; application of appropriate fungicide prior to formation of dense canopy. Leaf mold symptoms on lower leaf surface. Brown leaf spots on upper leaf surface. Spots look diffuse on lower leaf surface.
Spots look diffuse with fuzzy growth on lower leaf surface. Yellow spots. Symptoms on lower surface. Leaf spots and sporulation on underside of leaf. Spots on upper leaf surface due to leaf mold fungus. Yellow areas on upper leaf surface. Brown, felt-like patches of conidia on lower leaf surface. Symptoms on leaf mold infected fruits. Close-up of moldy growth on underside of leaf spot. Infected leaf, upper side.
Yellow spots due leaf mold. Leaf mold symptoms. The older leaves exhibit pale greenish to yellow spots without distinguishable margins on upper surface.
Whereas the lower portion of this spots exhibit green to brown velvety fungal growth. As the disease progress the spots may coalesce and appear brown.
South American tomato moth
The Angolan Government will continue creating conditions to improve the National Health Services, particularly in the training of professionals of the sector, seeking their best contribution to organisation and functioning. It is the only news agency in the country and aims to collect, process and distribute, on a unique system, both in Angola and abroad, news on the basis of objective information about national and international events. Sat, 21 Oct - Updated Sat, 21 Oct To report errors in the texts of articles published, fill out the information below and click Send. According to the farmer Pedro Tchinanga, the pest has spread since the end of September, a situation that worries the farmers of the green belt of the Halu River, and has already caused the destruction of a field of seven hectares of plants. Speaking to Angop, the deputy municipal administrator of Caimbambo, Lucas Pinto, said that the "solanaceous and virose" pest is of American origin and is developed in the leaves of the plants, leaving residues in the soil.
Tomato and Cherry tomato
However, you can also spot this pest in Africa, Asia and Europe since This species causes damage to plants of the nightshade family and is a real nightmare for tomato growers. Fortunately, you can react now with biological control! What damage can Tuta absoluta cause? How to control Tuta absoluta? What are the characteristics of Tuta absoluta? We can offer you more relevant advice, if you let us know where you are and what language you prefer.
PlantVillage is an open access public resource at Penn State that aims to help smallholder farmers grow more food. Please consider donating LINK and helping us, help smallholder farmers. Donate Contribution PlantVillage is an open access public resource at Penn State that aims to help smallholder farmers grow more food. Content Content 1. Diseases - Fungal. Pests - Insects. See questions about Tomato.
We'd like to understand how you use our websites in order to improve them. Register your interest. Tuta absoluta Meyrick , a major invasive pest of Solanaceous plants, was recently detected in Botswana. Abiotic and biotic factors, together with a suite of population demographic traits are likely key for species propensity and invasion success.