scholarly journals Predatory Capacity and Feeding Preference of Pesticide-Resistant Amblyseius deleoni Muma et Denmark (Mesostigmata: Phytoseiidae)

2021 ◽  
Vol 18 (24) ◽  
pp. 1441
Author(s):  
Bambang Heru Budianto ◽  
Rokhmani Rokhmani ◽  
Edi Basuki
Keyword(s):  
Copper Oxide ◽  
Feeding Preference ◽  
Predatory Mites ◽  
Continuous Exposure ◽  
Neem Seed ◽  
Wild Type ◽  
Tea Plantations ◽  
Synthetic Pesticides ◽  
Predatory Capacity ◽  
Seed Extracts

The population of the predatory mites Amblyseius deleoni had been decreasing due to continuous use of synthetic pesticides in tea plantations. Therefore, this study aimed to select pesticide-resistant individuals from a wild-type population of A. deleoni and to evaluate whether or not the resistant A. deleoni were still sensible as biological control agents.  We exposed A. deleoni to (propargite), fungicide (copper oxide) and a neem seed extracts. We found that the propargite-resistant predatory mites consumed larvae and nymphs of Tetranychus urticae more than the control (wild type) (P < 0.05).  There was no difference in the number of eggs and adults of T. urticae consumed (P > 0.05). The number of individuals of every stage of T. urticae consumed by copper-oxide resistant A. deleoni was the same (P > 0.05).  In general, there were no changes in food preference in the resistant predators to the 3 of pesticides (P > 0.05). There were slight differences on the pattern of predatory capacity among the resistant predators to the three pesticides.  Although the predators are resistant to the 3 pesticides, it took longer to consume their prey in comparison to the control.  These findings suggested that pesticide-resistant A. deleoni were able to maintain their functions as a biocontrol agent. HIGHLIGHTS The effectiveness of Amblyseius deleoni as a natural predators have decreased due to continuous uses of synthetic pesticides to control pests and diseases on tea plantations Continuous exposure to propargite, CuO and neem seed extracts induced the predatory mites deleoni to develop resistance No significant changes in feeding preference and the predatory capacity of the mite deleoni on T. urticae after becoming resistant to pesticides Exposures deleoni to pesticides may have induced heritable epigenetic changes permanently or just reversible phenotypes without changing the DNA sequence

scholarly journals Diversity of mites (Acari) on medicinal and aromatic plants in India*

Zoosymposia ◽  
2011 ◽  
Vol 6 (1) ◽  
pp. 56-61
Author(s):  
SALIL K. GUPTA ◽  
KRISHNA KARMAKAR
Keyword(s):  
Predatory Mites ◽  
Mite Species ◽  
Considerable Proportion ◽  
Aromatic Plants ◽  
Medicinal And Aromatic Plants ◽  
Pesticides Residues ◽  
Frequent Use ◽  
The World ◽  
Synthetic Pesticides ◽  
Different Parts

Despite the diverse and frequent use of medicinal and aromatic plants throughout the world, they have received poor attention regarding the mites and insects that they harbor. Here we summarize the diversity of phytophagous and predatory mites recorded on medicinal and aromatic plants in India, including first-hand information obtained by the authors in regular observations of plants growing in different parts of India between 2002 and 2009 as well as information reported in previous works conducted in the country. In total, 267 mite species of 93 genera and 18 families were found or have been reported on these plants in India.Most of these species (208) belong to families constituted mostly by phytophages, but quite a large number of species (56) belong to families constituted predominantly by predators. Despite the wide array of phytophagous species, relatively few have behaved as major pests, which may be at least in part due to the effect of the predatory mites with which they have been found. We consider 17 species as major pests of medicinal and aromatic plants and 11 species as main predators. The search for prospective predatory mites and the study of the feasibility of their use for the control of mite pests on medicinal and aromatic plants is worthwhile, given that a considerable proportion of people interested on the use of medicinal plants are adverse to the ingestion of synthetic pesticides residues, which could be found on those plants if the pests were controlled with the use of those products.

Effectiveness of Some Plant Materials against Jute Yellow Mite on Corchorus Olitorius

2021 ◽  
Vol 12 (1-2) ◽  
pp. 165-170
Author(s):  
B Akter ◽  
M Ali ◽  
MN Islam
Keyword(s):  
Field Condition ◽  
Seed Extract ◽  
Seed Kernel ◽  
Corchorus Olitorius ◽  
Neem Seed ◽  
Polyphagotarsonemus Latus ◽  
Plant Materials ◽  
Neem Leaf Extract ◽  
Powder Extract ◽  
Seed Extracts

An experiment was conducted to evaluate the effectiveness of plant materials against yellow mite (Polyphagotarsonemus latus) on jute (Corchorus olitorius) cv. 0–9897 in both greenhouse and field condition at BJRI during the period from March to October 2016. In greenhouse premises, the highest mortality (69.39, 67.77, 63.86, 62.43 and 61.47%) was recorded in extract of neem seed kernel @ 1:20, mehogony seed, pithraj seed, turmeric powder and green neem leaf, respectively. In field condition, the highest reduction (70.20%) of infestation over control, lowest nodes plant–1 (52.50), tallest plant (3.10 m) and highest yield increased (38.60%) over control were observed in neem seed kernel extract @ 1:20. In conclusion, neem seed kernel extract, mahogany seed extracts, pithraj seed extract, green neem leaf extract and turmeric powder extract @ 1:20 can be safely used by the farmers as components of IPM program of Jute. Environ. Sci. & Natural Resources, 12(1&2): 165-170, 2019

The efficacy of neem seed extracts (Tre-san®, MiteStop®) on a broad spectrum of pests and parasites

2010 ◽  
Vol 107 (2) ◽  
pp. 261-269 ◽  
Author(s):  
Günter Schmahl ◽  
Khaled A. S. Al-Rasheid ◽  
Fathy Abdel-Ghaffar ◽  
Sven Klimpel ◽  
Heinz Mehlhorn
Keyword(s):  
Broad Spectrum ◽  
Neem Seed ◽  
Seed Extracts
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