Foba Caroline

Huazhong Agricultural University | HZAU · College of Plant Sciences and Technology

Female insects oviposit in sites suitable for the development of their offspring. The Oriental armyworm, Mythimna separata is a serious pest of various crops including wheat and prefers to oviposit on withered leaves rather than on fresh plant material, which is surprisingly different from other insects. Studies here showed that this oviposition ta...

Background Plants respond to attackers by triggering phytohormones signaling associated metabolites, including herbivore‐induced plant volatiles (HIPVs). HIPVs can indirectly act against herbivory by recruitment of natural enemies and priming of neighboring plants. Ostrinia furnacalis and Mythimna separata are important insect herbivores of maize p...

Plant root-leaf communication signals are critical for plant defense. Numerous studies show that belowground organisms can alter systemically resistance traits in aboveground parts against herbivores. However, there are limited studies on root-knot nematode-aphid interaction. Moreover, the impact of nematode's initial density and infection time on...

BACKGROUND Brown rice planthopper (BPH) is a devastating rice pest in Asia. Bph14 is the first cloned BPH‐resistance gene in rice, inducing callose deposition while impeding BPH feeding. Nitrogen application affects plant growth and resistance. However, there is little evidence on the influence of nitrogen on the callose content or regulation of ri...

Background: Plant defense against herbivores begins with perception. The earlier plant detects the harm, the greater plant will benefit in its arm race with the herbivore. Before feeding, the larvae of the rice pest Cnaphalocrocis medinalis, initially spin silk and fold up a leaf. Rice can detect and protect itself against C. medinalis feeding. Ho...

In the scope of using Halticoptera arduine (Walker; Hymenoptera: Pteromalidae) in a classical biological control program in East Africa, laboratory bioassays were conducted to evaluate the acceptability and suitability of the three economically important Liriomyza leafminer species to the exotic parasitoid. Searching time, number of oviposition att...

Lepidopteran defoliators are the most important pests of cultivated amaranths causing severe losses in cultivated fields worldwide. Leaf‐webbers, whose larvae fold, web or glue amaranth leaves using their silken webs as they feed and leaf‐worms which cause windowing but do not glue or fold leaves are mainly reported. Sustainable management strategi...

Liriomyza spp., leafminer flies (Mik; Diptera: Agromyzidae), are economically important quarantine pests that puncture and mine leaves and fruits of various horticultural crops worldwide, affecting yield and trade. Halticoptera arduine (Walker; Hymenoptera: Pteromalidae), a key parasitoid from the pests' areas of origin in South America, was introd...

Liriomyza leafminers represent important threats to the horticulture sector in East Africa. Parasitism rates of local parasitoids are reported to be low and the endoparasitoid, Chrysocharis flacilla (Walker) (Hymenoptera: Eulophidae), was introduced in Kenya for a classical biological control program. Acceptability and suitability bioassays were co...

Agromyzid Liriomyza leafminer flies are a major threat to horticultural production in East Africa with low natural control reported. The endoparasitoid Chrysocharis flacilla (Walker; Hymenoptera: Eulophidae) was introduced from Peru into quarantine facilities at ICIPE in Kenya for a leafminer classical biological control program. Interaction assays...

Introduction: Liriomyza leafminers constitute a serious constraint to production and exportation of vegetables, grain legumes and cut-flowers in sub-Saharan Africa (SSA). In SSA, the most damaging leafminer flies, largely considered as quarantine pests, are Liriomyza huidobrensis(Blanchard), L. sativae (Blanchard) and L. trifolii (Burgess) (Diptera...

Liriomyza leafminers (Diptera: Agromyzidae) are severe pests of vegetables and ornamentals worldwide. Previous studies revealed low leafminer parasitism across different agroecological zones in Kenya. The present paper reports on the composition of leafminer parasitoids at different elevations, in different seasons, and on different host crops. Sur...

The parasitoid, Chrysocharis flacilla, was introduced into Kenya as a biological control agent of Liriomyza leafminers. Prior to its release, its interactions with the local parasitoid, Opius dissitus were assessed. Chrysocharis flacilla's performance was constantly better than O. dissitus. Releases of 25 individuals of each species resulted in hig...

A longitudinal study to identify the species of Liriomyza leafminer, their distribution, relative abundance, and seasonal variation, including their host range, was conducted in vegetable fields at three altitudes in Kenya from November 2011 to November 2012. Three main species were identified: Liriomyza huidobrensis (Blanchard), Liriomyza sativae...

The exotic parasitoid, Phaedrotoma scabriventris Nixon, was imported from Peru for the biological control of invasive Liriomyza species in vegetable and ornamental crops in Kenya where Opius dissitus Muesebeck is the most abundant indigenous Liriomyza parasitoid. Both species are solitary larva-pupal endoparasioids attacking the same larval stage....

To determine species composition of fruit flies on six cultivated varieties of citrus (Late Valencia orange, Pineapple orange, Ovaleto, Mediterranean sweet lemon, Satsuma tangerine and Ortanique orange), a study was conducted at the Agricultural Research Centre, Kade, Ghana. Improvised Lynfield baited traps (methyl eugenol (ME) and citrus juice (CJ...