scholarly journals Management of insect pests and diseases of cashew nuts (Anacardium occidentale L.) in production areas

2021 ◽  
Vol 11 (1) ◽  
Keyword(s):  
Insect Pests ◽  
Anacardium Occidentale ◽  
Pests And Diseases ◽  
Production Areas

scholarly journals Diseases and Insect Pests associated with Cashew (Anacardium occidentale L.) Orchards in Ghana

2021 ◽  
Vol 3 (5) ◽  
pp. 23-32
Author(s):  
A. Muntala ◽  
S. Kwadwo Gyasi ◽  
P. Mawuenyegan Norshie ◽  
S. Larbi-Koranteng ◽  
F. Kwekucher Ackah ◽  
...  
Keyword(s):  
Leaf Spot ◽  
Colletotrichum Gloeosporioides ◽  
Insect Pests ◽  
Anacardium Occidentale ◽  
Curvularia Lunata ◽  
Oecophylla Smaragdina ◽  
Isolation And Identification ◽  
Pests And Diseases ◽  
Kernel Infection ◽  
Colletotrichum Gloeosporioides Species Complex

Cashew (Anacardium occidentale L.), a recently recognized cash crop in Ghana, is an economically export oriented crop that plays a helping role in the Ghanaian economy in diverse ways. Owing to its importance, surveys were conducted in some major cashew producing communities in Dormaa and Berekum West District of the Bono region to assess the problems of insect pests and diseases associated with this economic tree across the study area. Diseased samples showing varying degrees of symptoms were taken for isolation and identification using morphological method. Insect pests were also assessed and identified. The results showed Colletotrichum gloeosporioides species complex to be associated with anthracnose, leaf lesions or spots, gummosis of twigs and stems and regressive die-back; Lasiodiplodia theobromae was found to cause stem and twig gummosis, blight, die-back of twigs and inflorescence; Pestalotia sp. was associated with Pestalotia leaf spot. Others, such as Penicillium sp., powdery mildew, Curvularia lunata, Cephaleuros sp. (red rust- algal leaf spot), mushroom and lichens were also found to be associated with the cashew orchards in the study area. Anthracnose, gummosis, algal leaf, and stem spots (red rust) and cashew kernel infection by Curvularia lunata constituted the major diseases of cashew in ascending order in the study area. The insect pests identified included Oecophylla smaragdina, Anoplocne miscurvipeson, Pseudotheraptus devastans, Pachnoda cordata, Pachnoda marginata, Helopeltis bug, Helopeltis schoutedeni, Planococcus sp., Lamida moncusalis, Odontotermes sp., Aphis sp., Analeptes trifasciata. Some unidentified pathogens, pests and other abnormalities were also observed.

Eco-smart pest management in rice farming: prospects and challenges

2019 ◽  
Vol 56 (Special) ◽  
pp. 143-155
Author(s):  
SD Mohapatra ◽  
R Tripathi ◽  
Anjani Kumar ◽  
Suchismita Kar ◽  
Minati Mohapatra ◽  
...  
Keyword(s):  
Insect Pests ◽  
Mobile Apps ◽  
Insect Species ◽  
Economic Damage ◽  
Pests And Diseases ◽  
Pest Damage ◽  
Disruptive Technologies ◽  
Hyper Spectral ◽  
Rice Pest ◽  
Computer Based

The insect problem is accentuated in intensive rice cropping where the insects occur throughout the year in overlapping generations. Over 800 insect species damaging rice in one way or another, although the majority of them do very little damage. In India, about a dozen of insect species are of major importance but the economic damage caused by these species varies greatly from field to field and from year to year. Insect pests cause about 10-15 per cent yield losses. Farmers lose an estimated average of 37% of their rice crop to insect pests and diseases every year. This review focuses on precision farming tools being used in rice pest and diseases management viz., forecasting model for real-time pest-advisory services, hyper-spectral remote sensing in pest damage assessment, computer-based decision support system, disruptive technologies (mobile apps).

MANAGEMENT OF INSECT PESTS AND DISEASES OF LITCHI AND LONGAN IN CHINA

2010 ◽  
pp. 621-626 ◽  
Author(s):  
H.Q. Hu ◽  
J. Chen ◽  
Z.J. Cai ◽  
R.J. Wu ◽  
X.X. Wei ◽  
...  
Keyword(s):  
Insect Pests ◽  
Pests And Diseases

scholarly journals Use of neem (Azadirachta indica A. Juss) as a biopesticide in agriculture: A review

2020 ◽  
Vol 1 (2) ◽  
pp. 100-117
Author(s):  
Kripa Adhikari ◽  
Sudip Bhandari ◽  
Dikshya Niraula ◽  
Jiban Shrestha
Keyword(s):  
Azadirachta Indica ◽  
Insect Pests ◽  
Reproductive Potential ◽  
Neem Extract ◽  
Fast Growing ◽  
Root Extracts ◽  
Pests And Diseases ◽  
Pest Damage ◽  
Azadirachtin A ◽  
Growth And Reproduction

Neem (Azadirachta indica A. Juss) is a member of Meliaceae family, a fast-growing tropical evergreen plant whose products were found effective against economically important insect pests and diseases. All parts of this plant particularly leaf, bark, and root extracts have the biopesticidal activities. Azadirachtin, a biopesticide obtained from neem extract, can be used for con-trolling various insect pests in agriculture. It acts on insects by repelling them, by inhibiting feeding, and by disrupting their growth, and reproduction. Neem-based formulations do not usually kill insects directly, but they can alter their behavior in significant ways to reduce pest damage to crops and reduce their reproductive potential. The neem is considered as an eas-ily accessible, eco-friendly, biodegradable, cheap, and non-toxic biopesticide which control the target pests. Thus, this re-view highlighted the extract, byproducts and roles of neem that can be used as potential biopesticide in agriculture.

scholarly journals Management of insect pests and diseases of tomato in farmer’s field through IPDM practices

2019 ◽  
Vol 12 (1) ◽  
pp. 67-71
Author(s):  
Noorulla Haveri ◽  
K.S. Nagaraja ◽  
K. Thulasiram
Keyword(s):  
Insect Pests ◽  
Pests And Diseases

scholarly journals Incidence of Pests and Diseases in Tree Nurseries and Plantations in Kimondi Forest, Nandi County, Kenya

2021 ◽  
Vol 3 (1) ◽  
pp. 18-28
Author(s):  
Joseph Atanga Ondieki ◽  
Peter Sirmah ◽  
Joseph Hitimana
Keyword(s):  
Insect Pests ◽  
Forest Products ◽  
Signs And Symptoms ◽  
Growth Conditions ◽  
Eucalyptus Species ◽  
Cupressus Lusitanica ◽  
Pests And Diseases ◽  
High Incidence ◽  
The Government ◽  
Increasing Demand

Increasing demand for wood is putting pressure on forest resources that are equally under threat from insect pests and diseases. Reported average annual forest loss stands at 0.2% globally, 0.8% in Africa, and 1.6% in Kenya. To meet the increasing demand for forest products in Kenya, the government and private sector have established plantations of non-native tree species dominated by Eucalyptus species, Cupressus lusitanica, and Pinus patula. To ensure successful forest plantation establishment and management schemes, there is a need for sufficient knowledge and understanding of tree growth conditions and threats including pests and diseases. This study aimed at determining the incidence of plantation and tree nurseries in Kimondi Forest, Kenya. Tree plantations were mapped into 2.5 Ha rectangular portion transects parallel to the forest roads.  In randomly selected portions, observations were carried out for disease and pest signs and symptoms on various tree parts (leaves, stem, roots, fruits, and twigs). In the tree nurseries, 3 m × 1 m rectangular quadrants were placed on seedling beds and similar observations were made. Collected data indicated a high incidence of nursery seedling pests (5.3 % leaves and 5.1%  stems) on Eucalyptus species and least on P. patula (2.4% leaves and 3% stems). Higher incidence of plantation pests (35.0% leaves of Eucalyptus sps.) and least on P. patula stems (1.2%) were recorded. On the other hand, twelve (12.0%) of C. lusitanica and (1.8%) Eucalyptus species plantation twigs were infested by pests. A high incidence of nursery seedling disease (9.8%) was observed on C. lusitanica leaves and least on P. patula stems (3.6%). Higher incidence of plantation diseases (32 %) on leaves of  Eucalyptus sps. and least on C. lusitanica stem (1.4%) was recorded. In both tree nurseries and plantations, roots and fruits remained free from pests and disease. Major tree pests and diseases identified in Kimondi forests include (Human, wildlife, livestock, Cinara cupressi, Gonipterus scutellatus, Pinus pini, and Leptocybe invasa) and (damping-off, Fusarium wilt, Botryosphaeria canker, cypress canker, and Mycosphaerella spp.) respectively. These results suggest a need for regular monitoring and intervention measures to control pest and disease infestation in the Kimondi forest.

The future is now: revolution of RNA-mediated gene silencing in plant protection against insect pests and diseases

2020 ◽  
Vol 14 (6) ◽  
pp. 643-662
Author(s):  
Fook-Hwa Lim ◽  
Omar Abd Rasid ◽  
Abdul Wahab Mohd As’wad ◽  
Ganesan Vadamalai ◽  
Ghulam Kadir Ahmad Parveez ◽  
...  
Keyword(s):  
Gene Silencing ◽  
Insect Pests ◽  
Plant Protection ◽  
Pests And Diseases ◽  
The Future

scholarly journals Effects of silicon amendment on the occurrence of rice insect pests and diseases in a field test

2018 ◽  
Vol 17 (10) ◽  
pp. 2172-2181 ◽  
Author(s):  
Yong-qiang HAN ◽  
Ji-hui WEN ◽  
Zhao-pu PENG ◽  
De-yong ZHANG ◽  
Mao-lin HOU
Keyword(s):  
Field Test ◽  
Insect Pests ◽  
Pests And Diseases ◽  
Rice Insect Pests

Role of potassium on insect pests and diseases of puddled transplanted rice cv. Lalat in Odisha

2017 ◽  
Vol 54 (3) ◽  
pp. 314
Author(s):  
S Mohapatra ◽  
KK Rout ◽  
CM Khanda ◽  
SK Mukherjee ◽  
A Mishra ◽  
...  
Keyword(s):  
Insect Pests ◽  
Pests And Diseases ◽  
Transplanted Rice
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