Integrated Pest Management in Cashew, Lecture Notes 2016 4 IPM in cashew: Cashew (Anacardium occidentale L.) is an important commercial tree nut crop. Unfortunately, cashew is threatened by many biotic and abiotic constraints resulting in significant yield losses. Cashew (Anacardium occidentale L.) is the present leading currency earning crop in Tanzania, generating income to over 2.5 million farmers.Despite of its importance, cashew is threatened by a new serious destructive disease called Cashew Fusarium Wilt (CFWD), which is caused by Fusarium oxysporum.The impact of the disease has reduced income at both household and national levels. Although cashew flourishes in soils . of pests and diseases. endstream 2020-04-26T17:58:03+05:302017-10-28T12:01:39ZMicrosoft® Office Word 2007 Pests and Diseases of Cashew Pests of Cashew: Amongst various; pests- damaging cashew, the- major ones are Tea Mosquito, stem and Root Borer, Leaf Miner and Leaf and’ Blossom Webber. The pathogen grows profusely on the lower surface of leaves I = b (1-e-as) (P***<0.001) (1) In this function, I stands for incidence, S for severity,b for estimated maximum incidence (emi) anda stands for estimated initial disease incidence (eii). The drupe develops first on the tree, and then the pedicel expands to become the cashew … endstream endobj 52 0 obj<. 19 0 obj The true fruit of the cashew tree is a kidney or boxing-glove shaped drupe that grows at the end of the cashew apple. The present investigation was to study the fungi associated with cashew plant in Odisha in view of the warm and humid climate. Cashew is an important cash crop in India but the incidence of diseases incur considerable losses in cashew plantations leading to reduction both in terms of quality and quantity. Assessment of Incidences and Severity of Cashew Leaf and Nut Blight Disease (CLNBD) in the Southern Areas of Tanzania Nene, W.A.1,M.E. application/pdfAssessment of Incidences and Severity of Cashew Leaf and Nut Blight Disease (CLNBD) in the Southern Areas of TanzaniaInternational Journal of Science and Research (IJSR) endobj The thin foliage of the tree is limited to the ends of the branches and is made up of oval-oblong leathery, shiny dark green leaves. diseases and obesity is due to the high content of unsaturated fatty acids (Yang et al., 2009). • Nigeria has witnessed a downward trend since early 1970’s due to numerous factors e.g ageing trees, shortcomings in applying recommended agronomic techniques by farmers, and the effects of pests and diseases … Tea Mosquite (Helopaltis antonii) Tea mosquito-is a major pest of cashew and causes more economic loss to the crop than the other pests. Pest Management in Cashew Management of Tea Mosquito Bug (a) Cashew tree looks like blighted. 4ªª6éþP¡¥ÎFßg¥¶f[ZyVƹ ¾BªÄ£%îgZ/4£«þpÖzp,²V!#îø®q'çT DOI: 10.22161/ijeab/3.5.4 Keyword: Cashew, dieback, fusarium wilt, cashew Leaf and nut blight, powdery mildew. 6 0 obj ii ABSTRACT Cashew (Anacardium occidentale L.) is an important export crop in a number of tropical countries and is the main cash crop and the leading source of income for over 30 The criteria for these groupings vary from one location to another as shown in Table 1 for small-scale processing capacity. Tea Mosquite (Helopaltis antonii) Tea mosquito-is a major pest of cashew and causes more economic loss to the crop than the other pests. The potential for high epidemics in each location or crop season was expressed by the emi value Severe epidemics of this disease have occurred in recent years as a result of expanding area cultivated with the susceptible clonal variety CP-76 (Cardoso et al., 1999, 2000; Freire et al., 2002). <>/Font<>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/Contents[19 0 R 20 0 R]/Group<>/Annots[21 0 R 22 0 R]/Type/Page/Tabs/S>> It is a very common disease of cashew, often assuming great importance during the south-west monsoon period. x��]Y��F�Vľ�W���PC� 1 0 obj Among biotic constraints, diseases and pests are the most damaging and compromise the cashew nut yield in terms of quality and quantity.4–15 Indeed, more than 12 diseases were reported to infect cashew tree worldwide. India being the leading producer, consumer and second largest exporter of cashew in the world, has a prime position in cashew trade in the world market.Cashew, Industry, But the What disease is this and how to control it? Sijaona2 1Naliendele Agricultural Research Institute, P. O. Diseases have been reported to cause significant cashew yield loss in Brazil, a major cashew-producing country. (b) What is the reason for and how to control the blight disease in which the twigs of cashew dry? Nigeria. especially in coastal regions. In August 2002 a new and damaging leaf and nut blight disease was observed on young tissues of cashew (Anacardium occidentale) in southern Tanzania.Angular lesions, dark tan with a dark reddish brown margin, were formed on leaves, often vein limited and containing conidiomata. Though cashew is not Cashew, a perennial tree well known as „poor man‟s crop‟ is a source of highly priced cashew nuts. Cashew (Anacardium Occidentale L.) has a wide range of applications therefore a high demand across the world (Kannan et al., 2009). Cashew (Anacardium occidentale Linn.) What is this disease? tolerant to major diseases (including, cashew leaf and nut blight) and insect pests, adapted to a wide range of agro-ecological conditions. Cashew’s (Anacardium occidentale L.) production in Burkina Faso suffers from several biotic constraints. crop seasons, cashew genotype or fungicide trials (Table 2). %PDF-1.5 The fungus penetrates into the deeper tissues and causes the death of the shoots from the tip downwards and hence the name dieback. �wb"tX�4�=�4�g�� ��ݰ�d�Dw[��[��o�ȶ�a�� d]YY�_fe�����\�'OwCѮ��Oz������{�};t��v������e�i�~���g/�'�$Y�+��E���EuZ� |KU����'/��H^l�o?��g>{��Wݗ��S��C��j������� %U�t��"Q���@U~���_�}���H��yZ�ɇ�X��,ϊ��-��nY,�[�h�e���/�̢]'����ɿ^'�e��X����=>Y���۬�%, Assessment of Incidences and Severity of Cashew Leaf and Nut Blight Disease (CLNBD) in the Southern Areas of Tanzania, International Journal of Science and Research (IJSR). Whitish or pinkish growth of the fungus can be seen on the affected branches. (c) Some dried leaves are seen amidst green leaves. <>stream is export crop and source of zones of Tanzania. %���� The adults […] Previously cashew powdery mildew was known to be the main disease of cashew. important disease of cashew (Anacardium occidentale) in coastal zones of northeastern Brazil. Region Small Capacity Classification Benin Less than 1000 Côte d’Ivoire Less than 3000 However it is challenged by a number of factors such as drought, declining soil fertility, un-improved low yielding cashew genotypes, insect pests and diseases. BRS 274 Common Brazil High yielding, desirable nut and apple qualities, tolerant to major disease and insect pests. The major cashew diseases are anthracnose, black mould, angular leaf spot, powdery mildew and gummosis (Freire et al. Crop Protection Department, Cocoa Research Institute of Nigeria, Ibadan E-mail: Michael_okeniyi@yahoo.co.uk INTRODUCTION Cocoa Research Institute of Nigeria was established in 1964 amongst its objectives is the identification of <>stream Cashew orchards were prospected in the production belt of Burkina Faso including Hauts Bassins, Cascades, South-Western and, Center-Western regions. and gummosis of twigs and trunk [ Lasiodiplodia theobromae (Pat.) The leaves are spirally arranged, leathery textured, elliptic to obovate, 4 to 22 cm long and 2 to 15 cm broad, with smooth margins. Pests and Diseases of Cashew Pests of Cashew: Amongst various; pests- damaging cashew, the- major ones are Tea Mosquito, stem and Root Borer, Leaf Miner and Leaf and’ Blossom Webber. 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