scholarly journals Diversity and distribution of stored grain insect pests of pulses and their natural enemies

2018 ◽  
Author(s):  
G. Harish ◽  
A Naganagoud ◽  
A G Sreenivas ◽  
Somashekhar . ◽  
Sharangouda Hiregoudar ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Dominant Species ◽  
Insect Pests ◽  
Stored Grain ◽  
Dinarmus Basalis ◽  
Stored Grains ◽  
Pulse Beetle ◽  
Hymenopteran Parasitoids ◽  
Stored Grain Insects ◽  
Rank Abundance

Biodiversity of stored grain insects is often neglected as many of the workers think that it has limited or no diversity as consumer tolerance towards insect pests in stored grains is zero. Survey was conducted in six districts of Hyderabad-Karnataka region to find out the diversity and insects infesting major stored pulses during 2014-15. Callasobruchus analis L., C. maculates F., C. chinensis L. and T. castaneum H. were insect pests observed in collected pulse samples. Dinarmus basalis R., D. vagabundus T.,Dinarmus sp. and Uscana sp. were the hymenopteran parasitoids on pulse beetle collected from the samples. Rank abundance showed that C. analis was dominant species found on stored pulses.

scholarly journals A checklist of spiders in tea plantations of China

2020 ◽  
Vol 8 ◽  
Author(s):  
Xuhao Song ◽  
Tingbang Yang ◽  
Xiaoqin Xu ◽  
Yang Zhong
Keyword(s):  
Natural Enemies ◽  
Dominant Species ◽  
Insect Pests ◽  
Important Data ◽  
Tea Plantation ◽  
Spider Species ◽  
Tea Plantations

Spiders are the most dominant predatory natural enemies of insect pests in the tea plantation ecosystem. There has been a large amount of literature published about the investigation of spider species in Chinese tea plantations from 1982 to 2020. Here, the spider species in Chinese tea plantations has been summarised and the dominant spider species in each regional tea plantation recorded. To date, there were 535 spider species from 40 families reported in Chinese tea plantations. There are 245 spider species from 13 families now being added to the checklist. A total of 89 spider species from 19 families were the dominant species, amongst them, Agelena labyrinthica, Allagelena difficilis, Neoscona theisi, Clubiona deletrix, Clubiona japonicola, Hylyphantes graminicola, Pardosa laura, Oxyopes sertatus, Evarcha albaria, Plexippus paykulli, Coleosoma octomaculatum, Ebrechtella tricuspidata and Xysticus ephippiatus were recorded in many tea plantations. The checklist will provide important data for the biodiversity and distribution of spiders in tea plantations of China.

scholarly journals Stored Grain Pests and Current Advances for their Management

2021 ◽  
Author(s):  
Rayees Ahmad ◽  
Shafiya Hassan ◽  
Showkat Ahmad ◽  
Syed Nighat ◽  
Yendrambamb K. Devi ◽  
...  
Keyword(s):  
Economic Crisis ◽  
Insect Pests ◽  
Management Strategies ◽  
Stored Grain ◽  
Preventive Practices ◽  
Flour Beetles ◽  
Fresh Food ◽  
Stored Grains ◽  
Stored Grain Pests ◽  
The Common

During the offseason, when fresh food is not available, humans have to consume stored grain food. Unfortunately, these stored grains are later infested with many pests. Foods stored in bags and bins are very much susceptible to infestation with several pests which can cause extensive post-harvest losses, spoilage, and less demand in markets, causing a huge economic crisis. Hence, successful management of stored grain pests becomes necessary to prevent these from insect pests. Current approaches for their management are one of the promising goals, as it includes preventive practices, monitoring, sanitation, and identification of main pathogens. Different management strategies of all the common stored grain pests viz. grain weevils, grain borers, grain moths, flour moths, mealworms, grain and flour beetles, booklice, mites, and parasites are enlisted here.

scholarly journals EFFICIENCY OF ORGANIC AND INORGANIC PESTICIDES AGAINST STORED GRAIN INSECT PESTS

2021 ◽  
Vol 37 (2) ◽  
pp. 110-117
Author(s):  
J. Zaib ◽  
S. A. Memon ◽  
A. Ali ◽  
G. A. Bugti ◽  
G. Khaliq
Keyword(s):  
Insect Pests ◽  
Red Flour Beetle ◽  
Control Group ◽  
Callosobruchus Chinensis ◽  
Neem Seed ◽  
Stored Grain ◽  
Flour Beetle ◽  
Powder Concentration ◽  
Neem Leaves ◽  
Pulse Beetle

The insect pests cause substantial loss of grains in the field and during storage of food grains that worth millions of rupees. Hence, in order to manage stored grain insect pests a combination of organic and inorganic pesticide control materials was selected to check the efficiency against red flour beetle (Tribolium castaneum) and pulse beetle (Callosobruchus chinensis). Total 10 treatments were used, eight different organic bio-pesticides (neem seed, neem leaves, naswar, tobacco, eucalyptus, citrus, dhatura and mint) and one inorganic (naphthalene balls) and control used at 32 ± 2°C and 70 ± 5% RH. The results indicated that three doses of all treatments were used as 5, 10 and 20gm in 50gm grains. Overall, maximum (4.33 ± 1.00%) mortality of red flour beetle was observed using neem seed powder and no (0.0 0 ± 00%) mortality was observed in minte leaves powder. In case of pulse beetle, the maximum (5.07 ± 0.87%) mortality was observed using neem seed powder and minimum (0.66±0.22%) using citrus leaves powder. Maximum (16.26 ± 0.03) antifeedant efficiency of red flour beetle was observed in control group and minimum (6.46±0.65) antifeedant efficiency of red flour beetle was found in dhatura leaves powder at all tested concentrations. Maximum (14.23 ± 0.13) antifeedant efficiency of pulse beetle was determined in control group and and minimum (1.00 ± 0.04) was observed for naphthalene balls at all tested concentrations. Maximum (94.67%) repellency against red flour beetle was observed using neem seed powder and minimum (62.00%) was found in naphathalene balls as compared with their controls. Maximum (81.32%) repellency against pulse beetle was observed using naswar powder and minimum (63.34%) repellency was determined using neem leaves powder as compared with their control group. We concluded that 20% of neem seed powder concentration proved effective to suppress the population of both red flour beetle and pulse beetle.

scholarly journals Sensory Quality of Essential Oils and Their Synergistic Effect with Diatomaceous Earth, for the Control of Stored Grain Insects

Insects ◽  
2019 ◽  
Vol 10 (4) ◽  
pp. 114 ◽  
Author(s):  
Erika Carla Pierattini ◽  
Stefano Bedini ◽  
Francesca Venturi ◽  
Roberta Ascrizzi ◽  
Guido Flamini ◽  
...  
Keyword(s):  
Essential Oils ◽  
Sensory Quality ◽  
Insect Pests ◽  
Synergistic Effects ◽  
Storage Conditions ◽  
Practical Application ◽  
Stored Grain ◽  
Foeniculum Vulgare ◽  
Stored Grain Insects

Essential oils (EOs) have gained increasing interest as a low-toxic, eco-friendly alternative to synthetic repellents and insecticides against insect pests. However, they have scarce practical application in the protection of stored grain because of their limited efficacy and their interference with the organoleptic properties of the grain. In this study, we evaluated the olfactory profile of the EOs of Foeniculum vulgare, Pistacia lentiscus, and Ocimum basilicum, and their toxicity against the main stored grain pest Sitophilus granarius. Trained assessors identified O. basilicum and F. vulgare, as more suitable than the P. lentiscus EO for the wheat treatment. In laboratory tests, the most toxic EO was the P. lentiscus (LC50 = 36.36 μL∙kg−1) while, the least toxic, was the F. vulgare one (LC50 = 77.59 μL∙kg−1). The EOs were also tested combined with diatomaceous earths (DEs) showing synergistic effects (co-toxicity coefficient values ranging from 1.36 to 3.35 for O. basilicum and F. vulgare EOs, respectively). Overall, O. basilicum resulted as the best EO for the wheat treatment, considering its insect toxicity and olfactory profile. In real storage conditions, the wheat co-treated with O. basilicum EO and DEs showed a significantly lower mean infestation (1.5 insect kg−1) than the non-treated wheat (7.0 insect kg−1).

scholarly journals Insect fauna of pests and their natural enemies inhabiting sorghum-panicles in Egypt

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Hosam M. K. H. El-Gepaly
Keyword(s):  
Natural Enemies ◽  
Dominant Species ◽  
Insect Pest ◽  
Pest Species ◽  
Parasitoid Species ◽  
Insect Fauna ◽  
Cryptoblabes Gnidiella ◽  
Arthropod Species ◽  
Lepidopteran Pests ◽  
Major Pest

AbstractSorghum panicles offer a very rich microenvironment for many insect pest species and their natural enemies. Thirty arthropod species belonging to 28 families, pertaining to 9 orders were obtained from sorghum panicles planted in Sohag Governorate, Egypt, during the 3 successive seasons of 2016–2018. Out of these species were 14 pests, 16 predators, and 3 parasitoids. Lepidopteran and hemipteran pests were the most dominant species-infested sorghum-panicles during the mature stages of the panicles. Three microlepidopteran pests, the noctuid, Eublemma (Autoba) gayneri (Roth.); the pyralid, Cryptoblabes gnidiella Millière, and the cosmopterigid, Pyroderces simplex Walsingham, were recorded as major pest species infesting sorghum panicles in Sohag Governorate. The dipteran parasitoid species, Nemorilla floralis (Fallen) (Tachinidae) emerged from the pupae of the E. gayneri and C. gnidiella, while the hymenopteran parasitoid, Brachymeria aegyptiaca (Chalcididae) was obtained from the pupae of all the studied microlepidopteran pests. Spiders, coccinellids, and Orius spp. were the dominant predators collected form panicles. Post-harvest, larvae, and pupae of lepidopteran pests, especially P. simplex recorded (147, 96, and 79 larvae) and (47, 30, and 73 pupae)/10 panicles in 2016, 2017, and 2018 seasons, respectively.

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