Effects of temperature and supplementary food on the development and fecundity of the Eulophid parasitoid
            <i>Tetrastichus howardi</i>
            on
            <i>Spodoptera frugiperda</i>
            (Lepidoptera: Noctuidae)

Yan, Sanqiang; Su, Hao; Lyu, Baoqian; Lu, Hui; Tang, Jihong; Zhuo, Zhihang; Yang, Fan

doi:10.1080/09670874.2021.1968535

Cited by 8 publications

(4 citation statements)

References 38 publications

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“…In addition, precipitation is also an important factor affecting the distribution of insects, and the amount of precipitation will directly affect the soil water content. It was reported that maintaining the relative water content of soil at 40%−60% was beneficial to the emergence of S. frugiperda (Yan et al, 2022). The results of our study show that the distribution probability of S. frugiperda reached the peak when the annual precipitation and the driest seasonal precipitation were around 1000 and 300 mm.…”

Section: Discussionmentioning

confidence: 99%

Prediction of the potential distribution area of Spodoptera frugiperda and its parasitic wasp, Trichogramma pretiosum

Jia,

Wang,

Peng

et al. 2024

Arch Insect Biochem Physiol

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Spodoptera frugiperda is a migratory agricultural pest with fast‐spreading speed, long migration distance, and wide host range, which seriously threatens the safety of economic crops. To predict the trends of S. frugiperda and its parasitoid wasp Trichogramma pretiosum in their habitats under current and future climatic conditions, based on MaxEnt model and geographic distribution data of their historical occurrence, we project the feasibility of introducing T. pretiosum to control S. frugiperda by evaluating on their potential global distribution. The results show that, under the current greenhouse gas concentration, the potential distribution area of S. frugiperda is concentrated in 50° N‐30° S, with a total area of 1.74 × 106 km2, and the potential distribution area of T. pretiosum in the whole world is 2.91 × 106 km2. The suitable areas of T. pretiosum cover almost all the suitable areas of S. frugiperda, which indicates that T. pretiosum can be introduced to control S. frugiperda. The results of this study can provide a theoretical basis for the monitoring and early warning of S. frugiperda and the use of T. pretiosum to control S. frugiperda.

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Section: Discussionmentioning

confidence: 99%

Prediction of the potential distribution area of Spodoptera frugiperda and its parasitic wasp, Trichogramma pretiosum

Jia,

Wang,

Peng

et al. 2024

Arch Insect Biochem Physiol

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“…Tetrastichus howardi exhibits a series of successful traits as a biological control agent. Females parasitize the host pupae inside the sugarcane stalk (Barbosa et al, 2019; Kfir et al, 1993), fulfil development and accomplish parasitism when reared at temperature regimes between 18 and 34°C (Yan et al, 2021). Tetrastichus howardi can be reared in insectaries using pupae of different species of lepidopteran (Barbosa et al, 2015; Pereira et al, 2022; Piñeyro et al, 2016) and pupae of the yellow mealworm Tenebrio molitor (L.) (Coleoptera: Tenebrionidae) (Barbosa et al, 2019; Tiago et al, 2019; Vargas et al, 2011), produced at low‐cost diets.…”

Section: Introductionmentioning

confidence: 99%

Biological and behavioural responses of the sugarcane borer parasitoid Tetrastichus howardi to insecticides

Bermúdez

Nascimento

Morato

et al. 2023

J Applied Entomology

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The pupal parasitoid Tetrastichus howardi (Olliff) (Hymenoptera: Eulophidae) parasitizes pupae of sugarcane stalk borers inside the stalk. Parasitoids currently used for applied biological control of sugarcane stalk borers target eggs and larvae, and T. howardi will add mortality to the pest stage with high survival. Nevertheless, insecticide applications required to control sugarcane borers and other sugarcane pests can affect T. howardi parasitism. Survival, walking, evasion and parasitism of T. howardi females were evaluated in response to the dry residue of insecticides from different chemical groups: chlorantraniliprole, bifenthrin, spinetoram, ethiprole, fipronil and thiamethoxam. Females of the parasitoid were confined on sugarcane leaves containing residues of the insecticides at 2, 24, 48, 72 and 96 h intervals after application, and survival monitored during the 96‐h period with subsequent determination of parasitism in the laboratory. Furthermore, female walking behaviour was observed individually using half‐treated arenas with insecticides. Chlorantraniliprole was compatible with T. howardi irrespective of residual intervals and studied variables. Other tested insecticides did not allow parasitoid survival up to 96 h of confinement on dry residues and, consequently, parasitism. Locomotory activity indicated that parasitoid females might avoid residues of spinetoram and ethiprole. Females were released in cages containing spinetoram and ethiprole‐treated sugarcane plants with the chance to move to untreated plants, parasitized pupae placed on either treated or untreated plants within a 24 h exposure period, which resulted in offspring production. Females observed for 10 min for walking behaviour in a half‐treated arena with chlorantraniliprole, ethiprole, fipronil, spinetoram, bifenthrin or thiamethoxam exhibited 100%, 73.3%, 70%, 66.7%, 10% and 0% survival after 24 h, respectively. Chlorantraniliprole was compatible with T. howardi through the bioassays conducted, and parasitoids showed the ability to parasitize their hosts on spinetoram‐ and ethiprole‐treated plants moving away from the treated environment.

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“…Tang et al found that T. howardi has an average 4.5% parasitic rate of the pupae of S. frugiperda in the field in the Hainan Province, China [ 16 ], and has the characteristics of easy propagation and strong thermal adaptation. The number of wasp eggs could be up to 60 in a host pupa [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Safety Evaluation of Chemical Insecticides to Tetrastichus howardi (Hymenoptera: Eulophidae), a Pupal Parasitoid of Spodoptera frugiperda (Lepidoptera: Noctuidae) Using Three Exposure Routes

Liu

Lyu

et al. 2022

Insects

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Spodoptera frugiperda has become a major pest in many crops worldwide. The main control strategies are biological and chemical controls. However, pesticides have varying degrees of toxicity to parasitic wasps in the field. To integrate chemical and biological controls, we evaluated the safety of insecticides to Tetrastichus howardi, an important pupal parasitoid of S. frugiperda. This study assessed the toxicity of six major control insecticides (emamectin benzoate, chlorfenapyr, indoxacarb, chlorantraniliprole, bisultap, and lufenuron) to T. howardi based on risk quotient. The results showed that indoxacarb had the lowest risk quotient (RQ = 7.43). Then the side effects of three sublethal concentrations (LC20, LC30, LC40) of indoxacarb were tested using three methods (1. Adult exposure to pesticide residues on the glass tube; 2. Adult exposure to pesticide residues on the host; 3. Larval exposure to pesticides through host exposure). Overall, T. howardi had a lower parasitism rate and emergence rate with the higher pesticide concentrations. Furthermore, among three methods, the adult exposure to pesticide residues on the glass tube was the most efficient in inhibiting the parasitism rate, and impairing the emergence rate and the offspring female/male ratio. This study guides a more scientific and comprehensive application of pesticides and releases natural enemies in the field.

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Effects of temperature and supplementary food on the development and fecundity of the Eulophid parasitoid Tetrastichus howardi on Spodoptera frugiperda (Lepidoptera: Noctuidae)

Cited by 8 publications

References 38 publications

Prediction of the potential distribution area of Spodoptera frugiperda and its parasitic wasp, Trichogramma pretiosum

Prediction of the potential distribution area of Spodoptera frugiperda and its parasitic wasp, Trichogramma pretiosum

Biological and behavioural responses of the sugarcane borer parasitoid Tetrastichus howardi to insecticides

Safety Evaluation of Chemical Insecticides to Tetrastichus howardi (Hymenoptera: Eulophidae), a Pupal Parasitoid of Spodoptera frugiperda (Lepidoptera: Noctuidae) Using Three Exposure Routes

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