Field Releases of the Predatory Mite Neoseiulus fallacis (Acari: Phytoseiidae) in Canada, Monitored by Pyrethroid Resistance and Allozyme Markers

2001 ◽  
Vol 20 (3) ◽  
pp. 191-198 ◽  
Author(s):  
M Navajas ◽  
H Thistlewood ◽  
J Lagnel ◽  
D Marshall ◽  
A Tsagkarakou ◽  
...  
Zoosymposia ◽  
2011 ◽  
Vol 6 (1) ◽  
pp. 62-67 ◽  
Author(s):  
KRISHNA KARMAKAR ◽  
SALIL K. GUPTA

Astudy was conducted in 2008–2009 to explore the predatory mite fauna from different agri-horticultural crops and weeds in the Gangetic plains ofWest Bengal. A total of 31 species belonging to nine genera, seven families and two orders were identified; they are listed along with their prey, period of occurrence and the plant habitats in which they were recorded. The most frequently collected specieswere the phytoseiids Amblyseius largoensis (Muma) and Neoseiulus longispinosus (Evans), the stigmaeids Agistemus spp. and the anystidWalzia indiana Smith-Meyer&Ueckermann.Given the frequencywithwhich these mites were found, they can be considered potentially useful in suppressing the associated prey mites. The phytoseiids Paraphytoseius multidentatus Swirski & Schechter, Euseius ovalis (Evans), Euseius coccineae (Gupta), Neoseiulus fallacis (Garman) and the cheyletid Cheletogenes ornatus (Canestrini&Fanzago) were less frequently found and less abundant, implying that their impact on prey population is less important. The remaining species were rare.


2019 ◽  
Vol 112 (5) ◽  
pp. 2262-2267 ◽  
Author(s):  
Raja Zalinda Raja Jamil ◽  
Christine Vandervoort ◽  
John C Wise

Abstract Neoseiulus fallacis (Garman) is a predatory mite that is common in apple orchards and distributed throughout North America. However, N. fallacis may be susceptible to pesticides used for the management of crop pests. This study aimed to evaluate the temporal effects of commonly used insecticides on N. fallacis survival. Neoseiulus fallacis adults were exposed to field-aged residues, and mortality and lethal time were measured over 96 h of exposure. Carbaryl caused high mortality to N. fallacis and the shortest lethal time values (LT50), followed by spinetoram, with moderate lethal time values. Esfenvalerate, acetamiprid, chlorantraniliprole, and novaluron showed little to no lethality to N. fallacis following exposure to dry field-aged residues. The results of this study provide important field-relevant knowledge that is often void from laboratory-based studies, which can aid integrated pest management (IPM) decision-makers in apple production systems.


2002 ◽  
Vol 37 (4) ◽  
pp. 329-337 ◽  
Author(s):  
Jessica A. Metzger ◽  
Douglas G. Pfeiffer

Slide dip bioassays were conducted to determine the direct toxicity of insecticides, acaricides, fungicides, and herbicides commonly used in vineyards in Virginia to Neoseiulus fallacis (Garman) (Acari: Phytoseiidae), a predatory mite under consideration as a biological control agent for spider mites (Acari: Tetranychidae). Among the insecticides and acaricides tested in the laboratory, carbaryl, azinphos-methyl, phosmet, cyhexatin, and pyridaben caused significantly (P ≤ 0.05) higher mortality than the control treatment. None of the fungicides tested were toxic to the predator, but three herbicides caused high mortality. Glufosinate caused 100% mortality after 24 h, and both oxyfluorfen and paraquat had adverse effects on N. fallacis. The use of materials that were found to be toxic to the predator may not be compatible with releases of N. fallacis into Virginia vineyards. However, incorporating materials that appear to have no direct toxicity to the predator into an integrated pet management program could improve the survival rate of released N. fallacis while still protecting this high value crop from other pests.


2015 ◽  
Vol 68 ◽  
pp. 446-446
Author(s):  
D.J. Wilson ◽  
P.J. Gerard

Spiny snout mite (Neomolgus capillatus) is a potential biocontrol agent for clover flea (Sminthurus viridis) a white clover pest on dairy farms in warmer and wetter parts of New Zealand In the 1990s this mite was introduced from Brittany France into Tasmania for clover flea control Results during the release programme were highly promising and subsequent anecdotal farmer reports indicate widespread decreases in damage As N capillatus is a predatory mite and already known to attack nontarget organisms habitat specificity will determine whether it could be introduced into New Zealand without risk to native insects To assess this pastures on nine of the original Tasmanian release farms and adjacent nontarget habitats ranging from bush wetlands eucalypt stands to sand dune country were sampled in April 2014 Litter samples were collected heat extracted and mite species identified Neomolgus capillatus was found at effective densities in pastures that had good clover cover Where present it displaced Bdellodes spp mites that are ineffective against clover flea No N capillatus were found in the nontarget habitats all of which lacked clover and contained other predatory mites including Bdellodes spp Therefore the preference by N capillatus for lush pastures makes it an excellent prospect for introduction as a biocontrol agent into clover flea prone regions of New Zealand


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