Results 131 to 140 of about 40,824 (309)

A preventive strategy for the control of aphids in sweet pepper using lacewings and micrococcinelid beetles

Insect Science, EarlyView.
Aphids pose a serious risk to horticultural crops. Current biocontrol strategies often fail due to the poor establishment of natural enemies when aphids are scarce. We evaluated the potential of two aphidophagous predators, Micromus variegatus and Scymnus interruptus, to be used as preventive biocontrol agents, released before aphid infestation.
Jesica Pérez‐Rodríguez, Reinier T. Valstar, Ada Leman, Gerben J. Messelink   +3 more
wiley   +1 more source

FIGURE 1. Berberomeloe, first instar larva habitus. a—B in Intra- and interspecific analysis of first instar larval morphology in the genus Berberomeloe Bologna 1989 (Coleoptera: Meloidae)

, 2009
FIGURE 1. Berberomeloe, first instar larva habitus. a—B. insignis, lateral view (SEM photograph) (scale bar=500 µm); b—B. insignis, dorsal view; and c—B. majalis, dorsal view (optical microscope photographs). Scale bars: 500 µm (Fig. a); 1 mm (Figs. b, c)
Settanni, Chiara, Giulio, Andrea Di, Finoia, Maria Grazia, Bologna, Marco A.   +3 more
core   +1 more source

Silencing of juvenile hormone‐related genes through RNA interference leads to molt failure and high mortality in the spongy moth

Insect Science, EarlyView.
The feasibility of using RNA interference to control the globally important quarantine pest, the spongy moth. Targeting genes related to JHs play an important role in the growth and development of insects. First, the open reading frames (ORFs) of Ldjhamt and Ldjheh were identified and characterized, and the target genes were cloned and double‐stranded ...
Wenzhuai Ji, Qing Xie, Xiaoxiao Chang, Juan Shi   +3 more
wiley   +1 more source

Plant latex and first-instar monarch larval growth and survival on three North American milkweed species

, 1999
First-instar larvae of the monarch butterfly, Danaus plexippus, a milkweed specialist, generally grew faster and survived better on leaves when latex flow was reduced by partial severance of the leaf petiole.
Malcolm, S. B., Zalucki, M. P.
core   +1 more source

From the predator to the prey: a case study of the vulnerability of Harmonia axyridis to aggressive competitors

Insect Science, EarlyView.
The level of aggressiveness of an individual is a factor that shapes intraguild predation (IGP) interactions. In Nabis americoferus, high aggressiveness leads to an increase in attack rate and IGP against Harmonia axyridis. Moreover, the absence of extraguild prey seems to exacerbate IGP. In docile N.
Pierre Royer, Kent Marcial Catubis, François Dumont, Eric Lucas   +3 more
wiley   +1 more source

Moringa oleifera based silver nanoparticles: Synthesis and insecticidal toxicity against fall armyworm

Notulae Botanicae Horti Agrobotanici Cluj-Napoca
The fall armyworm (Spodoptera frugiperda) is a major pest of several crops leading to significant yield losses. Developing effective and eco-friendly pest management strategies against fall armyworm (FAW) is crucial for sustainable agriculture.
Aqsa NOREEN, Mubashar HUSSAIN, Muhammad F. MALIK, Aniza IFTIKHAR, Uswa ZEB, Abid FARID, Abdullah A. ALARFAJ, Mohammad J. ANSARI   +7 more
doaj   +1 more source

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

Insect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami, Ian Orchard, Angela B. Lange   +2 more
wiley   +1 more source

Larval biometry of Simulium rubrithorax (Diptera: Simuliidae) and size comparison between populations in the states of Minas Gerais and Roraima, Brazil

Memorias do Instituto Oswaldo Cruz, 2003
The number of larval instars of Simulium (Hemicnetha) rubrithorax Lutz (Diptera: Nematocera) was determined using the lateral length of the head capsule. In this study 1,035 larvae, of different sizes, were measured (639 from the state of Roraima and 396
Alvan-Aguilar Miriam Adriana, Hamada Neusa   +1 more
doaj  

Brood parasitism reduces but does not prevent Bombus terrestris reproductive success

Insect Science, EarlyView.
Graphical depiction of the colony splitting process. Throughout figures in this paper, results pertaining to host success are represented in blue, and cuckoo success is represented in red. Abstract Cuckoo bumblebees are obligate brood parasites that must invade a colony of their host bumblebee species in order to reproduce.
Sofia Dartnell, Lynn V. Dicks
wiley   +1 more source

LsFAMeT and LsJHAMT coordinate JH biosynthesis to regulate fecundity in Laodelphax striatellus

Insect Science, EarlyView.
The small brown planthopper (SBPH), Laodelphax striatellus, can trigger large‐scale outbreaks when encountering suitable habitats during migration due to their strong reproductive ability. This study investigated the role of juvenile hormone (JH) in regulating SBPH reproduction.
Yan Guo, Bing‐Bing Shi, Xue‐Qi Zhang, Qiong Yang   +3 more
wiley   +1 more source