We studied Spodoptera frugiperda development using different food sources in the laboratory and field. Newly hatched larvae were fed soybean, cotton, maize, wheat, oat leaves. An artificial diet was used as control. Duration of pre-pupal, pupal, larva-adult period, pupal weight, sex ratio, survival, larva feeding preferences, oviposition nutritional quality hosts evaluated. Insects on wheat showed shortest period. The insects cotton soybean had longer larval cycles pupae lower weight....

ABSTRACT: Pesticides are considered the first line of defense for control pests and diseases. At least in short medium term, use pesticides will remain an important strategy pest management, allowing growers to produce crops sufficient quality at low costs. A broad approach known as Integrated Pest Management (IPM) combines several different pest-control strategies, among which combination chemical biological stands out. It requires that achieve optimal target with minimal impact on activity...

The moths Spodoptera eridania (Stoll) and cosmioides (Walker) are pests of increasing importance in various grain production systems, causing defoliation damage to reproductive structures plants. This fact underscores the need for studies that analyze nutrition development on different hosts. objective this study was evaluate S. feeding host species. To end, newly hatched larvae were separated individually into waxed cups fed soybean, cotton, maize, wheat, oat leaves, or an artificial diet...

Abstract Chrysodeixis includens (Walker 1858), also known as soybean looper, is a polyphagous pest with increasing economic significance in various crops. The rate of infestation and its distribution can be influenced by feeding through direct indirect effects on their life cycles. Thus, this study aimed to examine the biological characteristics, food preference leaf consumption C. (BRS 284), cotton (FMT 701), sunflower 323) common morning glory leaves ( Ipomoea sp.) possible host plants....

ABSTRACT: The selectivity of different insecticides, fungicides and fertilizers used in organic soybean cropping was evaluated according to the protocols proposed by Pesticides Beneficial Organisms Working Group International Organization for Biological Control (IOBC) concerning adults pupae egg parasitoid Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) under laboratory conditions. Treatments 1) baculovirus anticarsia 140 x 109 cpi; 2) Bacillus thuringiensis 16.8 g; 3)...

Toxicity (dosage per hectare) of: 1) Baculovirus anticarsia 140x109 cpi; 2) Bacillus thuringiensis 16.8g; 3) Azadirachtin-A, azadirachtin-B, nimbina and salamina 9.6 ppm; 4) Rotenoids 4 liters; 5) Nitrogen 1.3%, phosphorus 3.0% total organic carbon 8.0% 3 6) Sodium silicate 2% 7) Copper 7% + calcium 3.3% 1.8 8) Sulfur 20% quicklime 10% 9) Chlorpyrifos 384g; 10) Distilled H2O (control) were evaluated for pupae adults of Telenomus podisi. Treatments from 1 to 8 in general harmless (class both...

The selectivity of five entomopathogens and a chemical insecticide (positive control) to pupae adults the egg parasitoid Telenomus remus (Nixon) was evaluated in laboratory under controlled environmental conditions according protocols established by International Organization for Biological Control. Baculovirus anticarsia (Baculovirus AEE®), Bacillus thuringiensis var. kurstaki (Thuricide®), aizawai (Agree®), Beauveria bassiana (Boveril®), Metarhizium anisopliae (Metarril®) Trichoderma...

The present study evaluated the effect of different rates chlorantraniliprole, chlorantraniliprole + lambda-cyhalothrin, spinosad, and chlorfenapyr on their selectivity for pupae adults Trichogramma pretiosum. negative majority insecticides tested most parasitoids was directly proportional to rate insecticide applied. Chlorantraniliprole at a 10 g a.i. ha-1 classified as harmless (class 1) both parasitoid. 20 50 varied from slightly harmful 2) T. lambda-cyhalothrin 5 moderately 3) On...

The selectivity of insecticides, bio-protective mixtures, and biofertilizers used in organic soybean production was evaluated for adults pupae the egg parasitoid Telenomus remus Nixon (Hymenoptera: Platygastridae) under laboratory conditions accordance with protocols proposed by International Organization Biological Control (IOBC). products sprayed (dosage/180L water) were: 1) Baculovírus anticarsia 140x109 cpi; 2) Bacillus thuringiensis 16.8g; 3) Azadirachtin-A, azadirachtin-B, nimbina...

The selectivity of different insecticides to nymphs and adults Podisus nigrispinus was evaluated in this study. Tests were carried out the laboratory according IOBC standard protocol. We active ingredients that applied using a Potter tower. Insect survival assessed at 24-hour intervals for up five days after exposure treatments. Adult survivors each treatment assigned breeding-pairs evaluate possible effects on fertility. pyrethroids bifenthrin, zeta-cypermethrin, beta-cyfluthrin,...

The dispersion of Diceraeus melacanthus (Dallas) from soybean (first crop season) to maize (second is facilitated by the presence weeds (e.g.Commelina benghalensis) and grains on ground.Understanding insect development behavior different food sources important develop pest management strategies.Thus, three independent experiments were conducted study D. nymph development, adult preference for feeding oviposition in source scenarios field.The first two trials studied related (C.benghalensis...