India has a great diversity of insect pests attacking potato. More than 100 species of insects attack potato plants. These pests can damage the plants by feeding on leaves, reducing photosynthetic area and efficiency by attacking stems, weakening plants and inhibiting nutrient transport, and by attacking potato tubers destined for consumption … Symptoms of common potato scab are quite variable and are manifested on the surface of the potato tuber. The disease forms several types of cork-like lesions including surface. Damaged tubers have rough, cracked skin, with scab-like spots. potato pests are grouped into soil pests, foliage feeders, sap feeders, and storage pests. In seed production, the pests of greatest concern are typically aphid vec-tors of potato viruses, especially Myzus persicae (Sulzer). In ware production, the key pests may be insects which attack tubers, such as tuber moth, white grubs, and cutworms. Soil treatment with PCNB @ 70 kg/ha may minimzie the disease. Apart from fungal pathogens, bacteria and viruses also effect potato crop. Cultivation of disease resistant varieties is therefore, recommended. Among insect pests, aphids, cut worms and beetles are of economic importance. Potato Pests . Potato: Insect, Mite and Nematode Pests Management. Potato: Diseases and Symptoms. Nutritional Deficiencies/Disorders of Potato. Potato: Crop Stage-wise IPM. IPM for fruit crops. IPM for pulses. IPM for oilseeds. India Development Gateway (InDG), dedicated for providing information / knowledge and ICT … International Potato Center. 2018. Field guide for identification of major potato pests and diseases in Meghalaya, India. Food Resilience Through Root and Tuber Crops in Upland and Coastal Communities of the Asia-Pacific (FoodSTART+). tropical pest management, 1988, 34(2) 199-209 Potato pests in India and their control (Keywords: soil pests, sucking pests/sap feeders, defoliating pests, beetles, leaf eating caterpillars, weevils, storage pests, snails and slugs) A review is presented of the identification, injuriousness, biology and control of arthropod and nematode pests of potatoes in the field and in storage in India. Information on natural enemies is included for many of the pests discussed.
Natural Remedy to Kill Potato Bugs Natural Remedy to Kill Potato Bugs | Home Guides | SF Gate What is Potato Blight? | AHDB Potatoes late blight | plant disease | Britannica.com
Plum trees are one of the more resilient fruit trees and if they are given good care then they will most likely remain unaffected by pests and diseases. Like all plants however things can go wrong and this page is designed to help you identify what the problem is and the best method of dealing with it. The most common plum tree diseases include black knot, plum pocket, brown rot, plum pox virus, perennial canker and bacterial leaf spot. Black Knot Plum Disease Black knot is a plum tree problem that begins as a velvet green knot in … The insects sting and suck the cell juice, causing a stress to the plant. If the attack is severe, it causes a decrease in tree resistance to disease. Prevention and control measures: Treatments with Decis Mega EW 50, Confidor Energy, Mospilan 20 SG, Actara 25 WG. Plum fruit moth (Cydia funebrana) This species attacks the stone fruit … Disease-resistant trees are the best option for easy care; and for all trees, proper maintenance (such as watering, fertilizing, pruning, spraying, weeding, and fall cleanup) can help keep most insects and diseases at bay. Various insects can cause problems to plum trees. Common garden pests such as aphids and scale can be controlled by applying a dormant oil to kill overwinter eggs. Another option is to increase the number of predatory insects — ladybugs and green lacewings — that prey on aphids and scales. Borers are the larval stages of various … Aphids are a common pest on plum trees. These tiny green and black insects feed by attaching their mouths to leaves, buds, stems or the new growth of the tree. Once the aphids mouth is attached it begins sucking the sap, which is also called phloem. Phloem is the rich sugary, mineral rich substance that flows through trees and plants. Trees will grow optimally in soils with a pH between 5.5 and 6.5 Propagation Plum trees are propagated vegetatively to maintain the desirable genetic characteristic of the parent. Plum rootstocks are commonly used but plum may also be grafted onto peach, Japanese apricot and almond rootstocks. Many pests and diseases affect plum tree.Plums are a stone fruit, and several diseases can be transferred between stone fruit trees. Here is some information on diseases to look out for as well as some pest control instructions to keep your crop healthier.
Plum Tree Diseases and Pests. There are several damaging diseases and pests that affect plum trees. Some of the most common are: Black Knot – This is probably the most serious and widespread of the diseases that affect plum trees. This disease causes hard black long knots to form on smaller branches, often killing them. Sep 19, 2018 · Plum tree diseases like plum pox virus and plum rust are caused by pests like aphids. Black knot, which is caused by the Dibotryon morbosum fungus, causes long, hard, black knots to appear on the plum tree branches and … Some of the most common plum tree diseases that are caused by fungal infections are black knot, brown rot, powdery mildew, verticillium wilt, perennial canker and plum pockets. The bacterial diseases affecting plums are crown gall, bacterial spot and shot-hole. Plum tree diseases like plum pox virus and plum rust are caused by pests like aphids. What Are the Most Common Plum Tree Diseases? ( How to Identify Tree Fungus How to Care for Dwarf Plum Trees How to Care for Dwarf Plum Trees | Garden Guides Plum Tree Size | Home Guides | SF Gate
Peach Prune Pear
Pear Tree Issues – Tips On Fixing Pear Tree Problems How can the answer be improved? How to Treat Fruit Tree Diseases How to Treat Fruit Tree Diseases | Home Guides | SF Gate Here are some tips to keep in mind when trying to identify a pest: More Identify Your Pest Common Problems With Pears: Treating Pear Tree Insect
How to Identify Tree Fungus Other common diseases that damage pear trees include Fabraea leaf spot, caused by the fungus Fabraea maculate. Keep a look out for dark spots on leaves that then yellow and fall. Keep a look out for dark spots on leaves that then yellow and fall. Pear trees are generally easier to manage as far as pests and diseases are concerned compared to apple, plum and cherry trees. But there is no doubt they can suffer from a couple of very serious pests, pear midge being the most common and probably the most difficult to eradicate. The common denominator of these pests is that they lay their eggs in various parts of the tree or the fruit and they often cause spots or holes to the fruit, fruit drop and damage to the leaves, from curling and yellowing to defoliation. Disease-resistant trees are the best option for easy care; and for all trees, proper maintenance (such as watering, fertilizing, pruning, spraying, weeding, and fall cleanup) can … Pests and Diseases of Fruit Trees: Apple Tree Borer The apple tree borer is another very formidable pest, often destroying a young tree before its presence is known. I once found a young tree in a distant part of my place that I could push over with my finger. Pear trellis rust is a serious disease that can significantly impact the health and survival of pear trees. Reduced growth, crown thinning, and branch dieback will occur after several consecutive years of … Pear trees can reach 9 m (30ft) and will produce fruit for about 20 years . The European pear may be referred to by name of its cultivars which include the Bartlett, d’Anjou, Kaiser Alexander and …
UC IPM Pest Management Guidelines. University of California’s official guidelines for pest monitoring techniques, pesticides, and nonpesticide alternatives for managing pests in … Pyrus pyrifolia Pyrus communis Pyrus calleryana Apple Peach Plum
Stem/stalk borers are the most important insect pests of maize in Kenya. Yield losses in areas vary between 10-70%. Young plants have pinholes in straight lines across the newest leaves. This is the time to treat – before the larvae move on into the stem. A serious new disease of maize appeared in the farmers’ fields in eastern Africa in 2011. Called maize lethal necrosis (MLN; or corn lethal necrosis, CLN), it can devastate maize crops. Infection rates and damage can be very high, seriously affecting yields and sometimes causing complete loss of the crop. Use healthy, disease free certified seeds. Keep the fields free from weeds. Remove the infected plants and burn them. Control vectors by treating seed and/ foliar spray with suitable insecticide. Follow crop rotation with non cereals at least for two seasons. Plant maize only … Maize Farming in Kenya – Pests and Diseases The most common maize diseases include:-Maize Lethal Necrosis Disease (MLND) The disease occurs at all stages of crop. The main symptoms includes appearance of chlorotic mottling on leaves which starts from base and extends upwards. Maize has been bred to produce prodigious quantities of edible product. In addition the soil is normally enhanced with chemical or natural fertilizers. Insects and weeds are bound to find such conditions very amenable to their own reproductive efforts. the status of the maize loss in storage due to pests and make recommendations for alleviating losses. The study was carried out in Malawi’s Mwandama and Gumulira Clusters, Tanzania’s Mbola Cluster, and Kenya’s For example, maize is being adversely affected by aphids, thrips, leaf beetles, and cutworms. Stem borers alone cause around 13-15% loss of the crop. There are also diseases such as leaf blights, rusts, and stem and root rots. And maize lethal necrosis (MLN) virus … Maize stripe (maize chlorotic stripe, maize hoja blanca) Maize stripe virus: Maize tassel abortion Maize tassel abortion virus (MTAV) Maize vein enation Maize vein enation virus (MVEV) Maize wallaby ear Maize wallaby ear virus (MWEV) Maize white leaf Maize white leaf virus:
Plant pest and diseases. Safari park hotel, Nairobi. 15 -17 April 2014 Edwin Adenya and Aisja Frenken. Maize crops often have high levels of beneficial insects (predators and parasitoids) that may be harmed by insecticide applications. The combined action of natural enemies (including predators of eggs, larvae and pupae, parasites of eggs and larvae, and caterpillar diseases) can have a significant impact.
A similar disease, northern corn leaf blight, results in grayish green or tan lesions on the leaves and reduced yields. These fungi overwinter in infected seed and plant debris. Plant resistant varieties, using healthy, certified disease-free seed. Rotate crops and remove or till under crop debris. Disease emergence is favored in areas where a corn crop is followed by more corn with no rotastion; severity and incidence of disease is likely die to continuous corn culture with minimum tillage and the use of susceptible hybrids in in the midwestern corn belt of the USA; prolonged periods of foggy or cloudy weather can cause severe Cercopora epidemics. Maize crops often have high levels of beneficial insects (predators and parasitoids) that may be harmed by insecticide applications. The combined action of natural enemies (including predators of eggs, larvae and pupae, parasites of eggs and larvae, and caterpillar diseases) can have a significant impact. Corn lethal necrosis (Maize Lethal Necrosis Disease) Virus complex (Maize chlorotic mottle virus [MCMV] and Maize dwarf mosaic virus [MDMV] A or B or Wheat streak mosaic virus [WSMV]) Cucumber mosaic Cucumber mosaic virus (CMV) Johnsongrass mosaic Johnsongrass mosaic virus (JGMV) Maize bushy stunt Mycoplasmalike organism (MLO), assoc. Disease and Insect Pest Management in Maize. Maize is one of the most important grain crops in the world. The main season of maize cultivation is rainy season and hence prone to many diseases and pests. A manual on the most important pests and diseases of the major food crops grown by smallholder farmers in Africa. These include: cassava, banana, sorghum, millet, beans, yam, maize, rice, cowpea Pests and diseases in combinable crops Pests and diseases can affect crops and have a serious impact on the economic output of a farm. Fungicides are often the best way to limit crop Maize Field Guide Maize Crop Development, Pests and Diseases. SEEDING . THE FUTURE . www.kws-uk.com. SINCE 1856. 2. KWS Field Guide 2018. KWS Demonstration . Site If you would like to visit the KWS Office 90% of the crop is uniformly established and 10% of the field has failed. This may be explained
May 31, 2015 · Pests and Diseases of Maize (Zea mays) 22:19 Pests and plant diseases 1 comment Pests which are found in the cultivation of sweet corn borer, … Transboundary plant pests and diseases affect food crops, Cassava Mosaic and Brown Streak virus diseases continue to affect the main food crop – cassava – throughout the Great Lakes region of Eastern and Southern Africa. In Africa, an estimated 70 million people are dependent on cassava as a primary source of food contributing over 500
Crop Pests and Diseases. A manual on the most important pests and diseases of the major food crops grown by smallholder farmers in Africa. These include: cassava, banana, sorghum, millet, beans, yam, maize, rice, cowpea, sweetpotato and groundnut. How can the answer be improved? Crop Pests and Diseases. A manual on the most important pests and diseases of the major food crops grown by smallholder farmers in Africa. These include: cassava, banana, sorghum, millet, beans, yam, maize, rice, cowpea, sweetpotato and groundnut. The manual contains over 50 fact sheets. Overview of insect pest management in maize Maize can be attacked by a wide range of insects, but relatively few are major and/or regular pests. Soil insects can significantly affect establishment as can other establishment pests in some seasons or high risk situations. Use healthy, disease free certified seeds. Keep the fields free from weeds. Remove the infected plants and burn them. Control vectors by treating seed and/ foliar spray with suitable insecticide. Follow crop rotation with non cereals at least for two seasons. Plant maize only … INSECT DAMAGE: Damage on Post-harvest total losses due to pests in maize were estimated at 57 percentage, with insect pests being more important than diseases (Grisley, 1997). In Zimbabwe, grain damage of 92 percentage in stored maize was reported due to insect pests… 2.2 Monitoring crops for pests and diseases With most pests and diseases, the earlier the problem is noticed the better: it will be easier to take action to help prevent severe losses occurring or stop the pest or disease spreading throughout the crop and beyond to neighbouring fields. responsible for low crop yield where several insect pests attack from the seedling stage until harvest. Two major yield limitations that can be manipulated genetically are the susceptibility to diseases and pests. Reed and Lateef (1990) noted that the pod-sucking bugs (Clavigralla spp.) are one of the major insect pests of pigeon pea in the field.
Crop pests and diseases. Maize stalk borers are pests of maize, sorghum and other crops throughout many countries in Africa. The caterpillars bore into the stem of maize, feed on the internal tissues and cause the plant to wither and die. The pest can be controlled through a combination Corn lethal necrosis (Maize Lethal Necrosis Disease) Virus complex (Maize chlorotic mottle virus [MCMV] and Maize dwarf mosaic virus [MDMV] A or B or Wheat streak mosaic virus [WSMV]) Cucumber mosaic Cucumber mosaic virus (CMV) Johnsongrass mosaic Johnsongrass mosaic virus (JGMV) Maize bushy stunt Mycoplasmalike organism (MLO), assoc. The Impact of Pests and Diseases on Crop Production and the Effect of Pests and Crop Protection on Maize Production, 2002-04 – the contribution of targeted plant protection crop security – Production potential 940.3 x 106 t (= 100%) control soil borne pests and diseases Maize crops often have high levels of beneficial insects (predators and parasitoids) that may be harmed by insecticide applications. The combined action of natural enemies (including predators of eggs, larvae and pupae, parasites of eggs and larvae, and caterpillar diseases) can have a significant impact.
How can the answer be improved? The main insect pests and diseases affecting the production of lettuce within Queensland such as thrips, aphids, rots, moulds, wilts, and rust. Some of the most common lettuce pests are: Aphids; Armyworms; Corn earworms; Crickets; Darkling beetles; Flea beetles; Garden symphylans; Grasshoppers; Leaf miners; Nematodes; Snails and slugs; Thrips; Vegetable weevils; Whiteflies; Depending on your climate and region, you may find any or all of these pests on lettuce plants. Leaf Lettuce Production in California (PDF) Iceberg Lettuce Production in California (PDF) UC Vegetable Research and Information Center; UC Weed Research and Information Center; PDF: To display a PDF document, you may need to use a PDF reader. Lettuce, Lactuca sativa, is a leafy herbaceous annual or biennial plant in the family Asteraceae grown for its leaves which are used as a salad green. The lettuce plant can vary greatly in size, shape and leaf type but generally, the leaves of the plant form a dense head or loose rosette. Fungal lettuce diseases, such as damping off or sclerotinia drop (white mold), are caused by soil borne fungi that thrive in cool, damp soil and are primarily lettuce seedling diseases. Treating these lettuce diseases is achieved by spacing the plants apart to provide airflow and by reducing the amount of irrigation the seedlings receive. Common Lettuce Pests. Lettuce pests can be divided into three categories: weeds, diseases and insect pests. Because lettuce has a fairly short growing season, weeds can severely hamper the growth of a healthy crop. Diseases affecting lettuce crops are particularly common in warm, moist climates. Lettuce are generally very healthy plants and the main reason for failure is lack of water and not harvesting correctly. However they do occasionally suffer from pests and diseases …
Wind damage is more prevalent on the more exposed trees, such as trees along borders, and if soil is dry or roots are unhealthy. Bacterial blast, Dothiorella blight, and certain abiotic disorders (frost and wind) cause similar damage. These lemon tree insect pests can weaken a young tree, but make little difference to a mature, established tree. Natural predators are a big help in ridding the lemon tree of these insects. If you have a lot of lemon trees attacked, you can get these lemon tree pests by introducing another predator, the parasitoid wasp . Citrus Diseases Citrus Canker. Citrus canker is a highly contagious bacterial infection of citrus trees causing yellow halo-like lesions or scabs on the fruit, leaves and twigs of citrus trees. Severe infections can cause leaf loss, blemished fruit, fruit drop and die back. The Citrus Pest & Disease Prevention Program is an initiative funded by California citrus growers and administered by the California Department of Food and Agriculture dedicated to combating serious pests and diseases that threaten the state’s citrus trees. If you are lucky enough to be able to grow your own lemon tree, chances are good that you have encountered one or more lemon tree problems. Unfortunately, there are a plethora of lemon tree diseases, not to mention pest damage or nutritional deficiencies … Lemon trees attract a wide variety of pests and diseases, many of which can quickly spread across the tree and onto neighbouring trees if not dealt with promptly. Fortunately most can be treated with easily obtainable treatments. Tree Diseases And Pests – info.com – Search The Web Web Search Lemon Tree Diseases – GuardEngine Web Search
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How can the answer be improved? Leek Diseases, Pests and Problems Leek are generally trouble free. The most common disease affecting leeks is rust , which looks like orange coloured (rust coloured) patches on the leaves. Leek Problems: allium leek miner and leek moth Many gardeners are now having serious problems with the allium leaf miner and leek moth attacking their crops. Up until a few years ago these two pests were mostly confined to the southern and eastern counties but now they are progressively working their way across the country. Leek crops are affected by a number of weeds, insect pests and diseases. Weeds Early control of weeds is critical, particularly with direct-seeded or seedbed crops, as leeks are poor competitors with weeds. Leek will grow optimally in a well-draining loam with a pH between 5.5 and 7.0. Leek will grow optimally at temperatures between 18-21˚C (65-70˚F) with 8 hours of bright sunlight. Propagation In areas with short growing seasons, leeks should be planted from transplants started indoors. Seeds should be planted at a depth of 0.6-1.3 cm (0.25-0.5 in) leaving 7.5-10 cm (3-4 in) between plants and allowing 20-40 cm (8 … Generally, leeks grow unhampered by pests and diseases. This herb of the Allium family is hardy and not very sensitive to the soil where they are grown. It does, however, get attacked by some pests and diseases from time to time. see more details (mainly chemical control in relation to monitoring) of pests (including the nematode Ditylenchus dipsaciditylenchus dipsaciSubject Category: Organism Names see more details and the insectsinsectsSubject Category: Organism Names see more details Acrolepiopsis assectellaacrolepiopsis Leek Rust – Diseases How do I stop rust on my leeks? Rust is a very common fungal problem on leeks causing orange streaks on the foliage with raised pustules containing spores …
How can the answer be improved? Jun 29, 2017 · There are several pests that attack leafy vegetables, and all can be categorized into flies, bugs, mites, worms, and mollusks. If you grow greens or planning to grow them, here are the most common pests of leaf vegetables, their prevention, control, and management. Aphids are small, soft-bodied insects, often called plant lice. They spread several virus diseases, reduce vigor and yield of plants, and contaminate leaves. Sometimes natural controls, such as beneficial parasites, hold down aphid population, especially if you have not recently used a broad-spectrum pesticide. Recommendations for managing weeds, pests and diseases in vegetables like corn, tomatoes, potatoes, onions, asparagus, squash and peppers. Tips on dealing with worms, maggots, leafminers, beetles and mites, and scouting pests with your smartphone. Bacterial diseases have been important foliar diseases of leafy greens in Oklahoma. Bacterial diseases are serious, since they spread rapidly and cause direct damage to the marketed portion of the crop. In addition, chemical controls are not very effectiveWhile the causes and symptoms of each . disease are different, management programs are similar. Many Asian vegetables are from the Brassica and Cucurbit families and therefore may be impacted by key insect pests and diseases of Brassica and Cucurbit vegetables. Asian vegetables include the Asian leafy brassicas (e.g. buk choy, choy sum), melons (e.g. hairy melon), and luffas. A survey was conducted with 75 farmers from November 2003 to May 2004 in Western Province, Sri Lanka, to identify the major pests and diseases of commercial leafy vegetables and the control measures adopted by farmers. Managing common insects, weeds, plant diseases and certain animal pests found in the backyard can be a challenge. However, there are a number of ways to approach the problem. Information in this publication will help identify and manage pest problems.