Use of acoustics to deter bark beetles from entering tree material

Aflitto, Nicholas; Hofstetter, Richard W.

doi:10.1002/ps.3720

Cited by 16 publications

(14 citation statements)

References 35 publications

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“…We administered the vibracoustic recordings to Petri dishes using 10 contact actuators (DAEX13CT‐4 13 mm 3 W 4 Ω sound exciters; Dayton Audio, Springboro, OH) connected to each acoustic player (Lepai LP‐269FS 4x45 W Mini Amplifier; Aflitto & Hofstetter, 2014). The contact actuator results in both a vibratory component within the Petri dish and an airborne auditory component emitted by the Petri dish itself.…”

Section: Methodsmentioning

confidence: 99%

Acoustic noise of refrigerators promote increased growth rate of the gray mold Botrytis cinerea

Hofstetter

Copp

Lukić

2020

Journal of Food Safety

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Botrytis rot (Botrytis cinerea) is a serious disease of fruit and vegetables around the globe. Botrytis rot is a problem not only in the field, but during storage, transit, and marketing, due to onset of severe rot on ripe produce. Fungal growth is promoted by warm temperatures and high humidity although other factors could play a role. Mechanical stimulation via vibroacoustic energy is known to affect the growth of organisms but is little studied in food safety of crop transportation and storage. We test whether mechanical energy in the form of vibrations and acoustic frequencies from in-store refrigerators and cold-storage units affect the growth rate of botrytis rot. We also test a broad range of single tones (frequency, Hz) and dyads (2-tone chords) from 110 to 25,088 Hz to determine if particular frequencies have differential effects on the growth of botrytis rot. Playback of vibroacoustic recordings of refrigerator units increased the growth of botrytis rot by 13-18%, on average, suggesting that acoustic output from storage units could promote the mold during transport, storage or within grocery stores. Increased fungal growth rate appears to be stimulated by high frequencies, above 5,000 Hz. Additionally, low frequencies below 165 Hz can reduce botrytis rot growth rate suggesting that exposure to very low frequency ranges could be used to control the fungus. Results of this study open new perspectives on how vibroacoustic output from electronic devices and machines may affect food quality and fungal contamination on fruit, flowers, and vegetable produce. 1 | INTRODUCTION Botrytis rot, commonly called "gray mold" or "botrytis bunch rot," is a serious disease of fruits, flowers and vegetables (Herrera-Romero,

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Section: Methodsmentioning

confidence: 99%

Acoustic noise of refrigerators promote increased growth rate of the gray mold Botrytis cinerea

Hofstetter

Copp

Lukić

2020

Journal of Food Safety

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“…Ultrasound technologies have been promoted as an effective means of minimizing pest organisms in ponds and lakes, but little is known about the effects of ultrasound on non-target organisms (fish, frog, dog etc.,) or ecosystem processes when implemented on a large scale in complex natural systems (Aflitto and Hofstetter, 2014;LaLiberte and Haber, 2014).…”

Section: Resultsmentioning

confidence: 99%

“…Infrasonic is characterized as the sound below 20 kHz, whereas ultrasonic sound is defined as the sound above 18.000 Hz. Ultrasonic devices are typically marketed to target arthropod (including spiders, scorpions and insect pests) and mammal pests, while devices targeting birds operate within our normal hearing range (Aflitto and Hofstetter, 2014).…”

Section: Introductionmentioning

confidence: 99%

Ultrasonik ve Ultrasonik Sınır Altındaki Farklı Ses Frekanslarının Culex pipiens (L.)’in (Diptera: Culicidae) Larvaları Üzerine Etkilerinin Değerlendirilmesi

Özkurt

Kavur

2019

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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ÖZET: Vektör eklembacaklılar olarak bilinen sivrisinekler, insanlığa çeşitli hastalıkları bulaştırırlar. Dünya çapında, sivrisineklere karşı uygulanan mücadele programları, mikroorganizmaları, kimyasalları, doğal düşmanlarını, bazı fiziksel bariyerler gibi farklı ajanlardan oluşmaktadır. Çalışmamızda, ultrasonik ses seviyenin üstündeki ve altındaki değişen ses frekanslarının Culex pipiens larvalarına olan etkilerini belirlemeye çalıştık. Toplamda sekiz saat süren deneylerimizde, 3 farklı düzeyde (10.8 kHz, 20.0 kHz ve 24.5 kHz), 3 tekrarda, ses frekansı üreten piezo transdüktörlü modifiye kaplarda bulunan 720 adet sivrisinek larvası kullanılmıştır. Kontrol grubu olarak da aynı sayıda larva kullanılmıştır. Culex pipiens'in ikinci evre larvalarının, kullanılan frekans seviyelerine daha duyarlı olduğu bulunmuştur. Ayrıca larva mortalite açısından en etkili ses frekansı, 129 ölü larvanın gözlemlendiği, 10.8 kHz olarak tespit edilmiştir. Kullanılan üç ayrı frekans için larvalar üzerinde gözlemlenen mortal etkinin, değişen düzeylerde uygulanan ses frekansları ile doğrudan ilişkili olmadığı, larvaların her birinin akustik rezonans sınırları ile ilgili olduğu tarafımızca tespit edilmiştir.ABSTRACT: Known as vector arthropods, mosquitoes transmit several types of diseases to human. Applied vector programmes worldwide against mosquitoes have different agents such as microorganisms, chemicals, natural enemies, physical barriers, etc. We aimed to determine the effects of varying sound frequencies above and below ultrasonic level (10.8 kHz, 20.0 kHz and 24.5 kHz), on Culex pipiens larvae with three replicates. In total, 720 mosquito larvae located in modified container with produced three different level sound frequencies piezo transducers were used in our experiment lasting eight hours. Also, the same number of larvae were used as control groups. Second instar larvae were detected more sensitive to used frequencies level. Also, in terms of larval mortality, the most effective sound frequency was 10.8 kHz in which 129 larvae died. It was concluded that the mortal effect was not related to the change in the frequency of sound; and this effect was related to resonance of the larvae used in the study.

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“…Both females and males of various species of insects produce and react to micro-vibrations thought to be involved with mate attraction. Predominantly this behaviour has been studied in tree and plant parasitizing species including the American grapevine leafhopper Scaphoideus titanus (Mazzoni et al, 2009), the southern green stink bug Nezara viridula (de Groot et al, 2010), the Asian citrus psyllid Diaphorina citri (Rohde et al, 2013) and the southern pine beetle Dendroctonus frontalis (Aflitto & Hofstetter, 2014). Studies have shown conspecific vibration patterns such as those from competing males (Mazzoni et al, 2009;Rohde et al, 2013) or heterospecific patterns such as those from a predator (de Groot et al, 2010), can alter male behaviour resulting in reduced mating events.…”

Section: Alternative and Novel Targetsmentioning

confidence: 99%

Understanding the biology and control of the poultry red miteDermanyssus gallinae: a review

et al. 2015

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Dermanyssus gallinae, the poultry red mite (PRM), is a blood-feeding ectoparasite capable of causing pathology in birds, amongst other animals. It is an increasingly important pathogen in egg layers and is responsible for substantial economic losses to the poultry industry worldwide. Even though PRM poses a serious problem, very little is known about the basic biology of the mite. Here we review the current body of literature describing red mite biology and discuss how this has been, or could be, used to develop methods to control PRM infestations. We focus primarily on the PRM digestive system, salivary glands, nervous system and exoskeleton and also explore areas of PRM biology which have to date received little or no study but have the potential to offer new control targets.

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Use of acoustics to deter bark beetles from entering tree material

Abstract: The reduction in bark beetle entry into logs using particular acoustic treatments indicates that sound could be used as a viable management tool.

Cited by 16 publications

References 35 publications

Acoustic noise of refrigerators promote increased growth rate of the gray mold Botrytis cinerea

Acoustic noise of refrigerators promote increased growth rate of the gray mold Botrytis cinerea

Ultrasonik ve Ultrasonik Sınır Altındaki Farklı Ses Frekanslarının Culex pipiens (L.)’in (Diptera: Culicidae) Larvaları Üzerine Etkilerinin Değerlendirilmesi

Understanding the biology and control of the poultry red miteDermanyssus gallinae: a review

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