Fatemeh Yarahmadi

Agricultural Sciences and Natural Resources University of Khuzestan · Plant Protection

Integrated Pest Management (IPM) has emerged as a crucial approach in sustainable agriculture, aiming to minimize the impact of pests while reducing reliance on synthetic pesticides. This paper delves into the evolution of IPM over the past six decades, highlighting its goals of sustainable agricultural practices and decreased pesticide application...

This book covers the theoretical and practical aspects of pest population components, explaining the probable reasons for pest density fluctuations and outbreaks in agricultural or other ecosystems. Agricultural pest management is a complex task that involves dealing with a variety of pests, including insects, diseases, and weeds. Decision system...

The concept of biodiversity as a key factor influencing the stability of insect populations within ecosystems is explored. Biodiversity, encompassing the diversity of plants, animals, and microorganisms in a given environment, serves as a crucial metric for evaluating ecological community resilience. Population ecologists emphasize the significance...

Counting and estimating the population statuses of all pests or their natural enemies in an ecosystem, such as a farm, orchard, jungle, or pasture, is typically impractical. Thus, developing an accurate and cost-effective sampling program from the natural population is crucial for the implementation of Integrated Pest Management (IPM) programs. The...

In the chapter titled “Remote Sensing, Geographic Information System (GIS), and Machine Learning in Pest Status Monitoring” from the book “Decision Systems in Agricultural Pest Management,” the focus is on the significance of precision agriculture in addressing global food security challenges. The chapter explores how advanced sensors and analyses...

The chapter “Decision-Making Levels” in the book “Decision System in Agricultural Pest Management” delves into the fundamental concept of economic decision-making levels within integrated pest management strategies. These levels are established on the principle that a specific threshold of pest population density and associated damage is tolerable....

The chapter “Temperature-Dependent Models for Predicting Poikilotherm Pest Occurrence” delves into the critical role of precise prediction in the development and emergence timing of insect pests, especially in the context of Integrated Pest Management (IPM) programs. The timing of pesticide applications is crucial, as many pesticides are effective...

Understanding the population dynamics of pests is crucial in agricultural pest management. This book chapter, "Population Components of Pests," within the framework of the book "Decision System in Agricultural Pest Management," delves into the key phenomena that shape pest populations, such as birth, mortality, and migration. These factors play a f...

Effective Integrated Pest Management (IPM) programs rely heavily on accurate knowledge of pest and beneficial organism populations. Within the context of the book “Decision System in Agricultural Pest Management,” this chapter, “Monitoring and Population Density Estimation,” emphasizes the critical role of population estimation and sampling in IPM...

The chapter “Monitoring and Population Density Estimation” within the book “Decision System in Agricultural Pest Management” delves into the intricate relationship between pest populations and their environment. The chapter explores how factors such as population density, age structure, sex ratio, and spatial distribution shape the dynamics of pest...

Entomopathogenic fungi (EPF) are the main microbiological control agents of insect pests. One of the key factors in the pathogenicity of EPF is the production of insecticidal bioactive compounds. Therefore, the metabolites of two isolates of EPF, Cladosporium cladosporioides (Fresen.) G.A. de Vries (AF98) and Acremonium zeylanicum (Petch) W. Gams &...

Entomopathogenic fungi (EPF) are key elements for pest management in sustainable agriculture. Many EPFs can produce secondary metabolites with toxic effects, playing an essential role in their pathogenicity. In this study, the metabolites of some EPFs, including three isolates of Akanthomyces lecanii species (PAL6, PAL7, and PAL8) and one isolate o...

Efficacy of some resistance inducers for reduction of Agrotis segetum (Lepidoptera: Noctuidae) in sugar beet was evaluated under field conditions. The inducers include salicylic acid, calcium silicate and sodium silicate which applied in two dosages, 100 and 50 per cent of recommended field dosages (RFD). The larval density in calcium silicate trea...

Entomopathogenic fungi (EPF) are the main microbiological control agents of insect pests. One of the key factors in the pathogenicity of EPF is the production of insecticidal bioactive compounds. Therefore, the metabolites of two isolates of EPF, Cladosporium cladosporioides (Fresen.) G.A. de Vries (AF98) and Acremonium zeylanicum (Petch) W. Gams &...

Entomopathogenic fungi (EPF) are the most important category of microbial agents and considered to be crucial elements in biological control. In this study, two species of EPF, Cladosporium sp. AF98 (Ascomycota: Davidiellaceae) and Acremonium zeylanicum IR87 (Petch) W. Gams & H.C. Evans (Ascomycota: Hypocreaceae), were isolated from infected indivi...

p class="042abstractstekst"> Aenasius bambawalei Hayat, 2009 is one of the most effective natural enemies of Phenacoccus solenopsis Tinsley, 1898. The sublethal effects of dimethoate, imidacloprid, and thiodicarb on the functional response of A. bambawalei to different densities of third instar nymphs of P. solenopsis were evaluated under laborator...

The beet armyworm, Spodoptera exigua, is the most destructive pest of sugar beet in many regions of the world including Iran. In this study, the effect of some potential resistance inducers (salicylic acid, calcium silicate and sodium silicate) for reducing the pest density were investigated in sugar beet field. The inducers were applied in 100 and...

Background and Objective The Black bean aphid (BBA), Aphis fabae Scopoli (Hemiptera: Aphididae), is an important pest of agricultural and ornamental plants. Entomopathogenic fungi are important factors in the microbiological control of pests that are considered a good alternative for chemical insecticides. Isolation of novel potential IPF and ev...

The pink stalk borer, Sesamia cretica Led. (Lepidoptera: Noctuidae), is one of the most important sugarcane pests in many regions of the world, causing severe damage to sugarcane every year. This insect has a specialized form of the auditory organ called the tympanal organ, and ultrasound can be employed as a potential tactic employed in physical c...

The cotton whitefly, Bemisia tabaci Gen. (Hem., Aleyrodidae), is a key pest of many vegetables. Entomopathogenic fungi are promising microbial control agents against B. tabaci , but limited information is available concerning indigenous Iranian isolates. In this study, three isolates of Akanthomyces lecanii (PAL6, PAL7, and PAL8) and one isolate of...

The black bean aphid, Aphis fabae (Homoptera: Aphididae), is a widespread pest that has more than 200 hosts in the world. Insecticide resistance (IR) due to frequent applications is the major limitation in integrated pest management programs. Biochemical resistance is a common type of IR in which the insecticide is detoxified by one or more enzymes...

The life table parameters of the parasitoid wasp, Aenasius bambawalei Hayat (Hym.: Encyrtidae) were studied at 25, 30, and 35 C, 65 ± 5% R. H. and 14L: 10D h. Third instar nymphs of Pseudococcus solenopsis Tinesly (Hem.: Pseudococcidae) were used as host for the wasp. Adult longevity and preoviposition period of female wasps were assessed and the...

Phenacoccus solenopsis Tinsley is a polyphagous pest that has become a serious threat to agriculture in the tropical and subtropical regions of the world since the beginning of the twentieth century. Aenasius bambawalei Hayat is an endoparasitoid that parasitizes third instar nymphs of P. solenopsis. In this study, sublethal effects of spirotetrama...

Botanical insecticides, including essential oils (EOs), can be considered as appropriate alternatives to synthetic insecticides for controlling stored product pests. In this study, potential of nano-formulations of the Tasmanian blue gum (TBG) EO to control Callosobruchus maculatus Fabricius (Coleoptera, Bruchidae) were evaluated under laboratory c...

Abstract The whitefly species, Bemisia tabaci (Genn.) (Hemiptera: Aleyrodidae) is an important pest of many vegetable crops in the world. To evaluate the potential of the predatory species, Orius albidipennis Reuter (Hemiptera: Anthocoridae) in pest control, functional responses of the predator to different densities of eggs and third instar nymphs...

Spodoptera exigua (Hubner), is a destructive pest in different parts of the world. In this study, the effects of indoxacarb, chlorpyrifos, deltamethrin, hexaflumuron, matrin, and Bacillus thuringiensis var. kurstaki)Bt), were evaluated against S. exigua in a complete randomized block design under field conditions. Four replications were considered...

In recent years, plant derivatives such as essential oils have been one of the most promising sources for the substitution of chemical insecticides for pest management. A laboratory assessment was conducted to find the fumigant toxicity of Artemisia sieberi Besser, Pelargonium roseum Andrews, and Ferula gummosa Boiss essential oils against the swee...

The functional response of Aenasius bambawalei Hayat (Hymenoptera: Encyrtidae) to different population densities of Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) was investigated under laboratory conditions of 65 ± 5% R.H., a photoperiod of 14L: 10D and at temperatures of 25, 30 and 35 ± 1°C. Two, 4, 6, 8, 16, 32 and 64 third instar ny...

South American Tomato Pinworm (SATP), Tuta absoluta Meyrick (Lepidoptera: Gelechiidae), is one of the most devastating pests in tomato greenhouses. Efficacy of some chemical and biorational insecticides, namely chlorfenapyr, thiocyclam, azadirachtin and Bacillus thuringiensis (Bt), in controlling SATP and their compatibility with Elachertus inunctu...

Potential of Orius albidipennis Reuter as a biological control agent of tomato leaf miner (Tuta absoluta Meyrick) eggs was evaluated and comparing by estimating its functional response on the two tomato cultivars with different physical characteristics under laboratory conditions. Eight prey densities (8, 10, 15, 20, 25, 30, 35, and 40 eggs per lea...

This is the first report of two ectoparasitoid wasps, Elachertus inunctus (Nees, 1834) in Iran and Elachertus pulcher (Erdös, 1961) (Hym.: Eulophidae) in the world, that parasitize larvae of the tomato leaf miner, Tuta absoluta (Meyrick, 1917) (Lep.: Gelechiidae). The specimens were collected from tomato fields and greenhouses in Ahwaz, Khouzestan...