scholarly journals Оптимізоване живильне середовище для культивування Podisus Maculiventris Say. (Heteroptera: Pentatomidae)

2016 ◽  
pp. 57-62
Author(s):  
М. С. Мороз
Keyword(s):  
Embryonic Development ◽  
Colorado Potato Beetle ◽  
Podisus Maculiventris ◽  
Potato Beetle ◽  
Heteroptera Pentatomidae ◽  
Control Variant ◽  
High Level

Встановлено, що оптимізоване живильне середовище для культивування Podisus maculiventris Say. забезпечує високий рівень розвитку популяції. Запропоноване живильне середовище на достеменно високому рівні забезпечує виживання, зменшення тривалості постембріонального розвитку, зростання показників маси імаго, кількості відкладених яєць. Вирощені на живильному середовищі хижі клопи спроможні знайти і знищити за добу на  27,91 і 41,86 відсотків  більше яєць колорадського жука порівняно з контрольним варіантом. It is set that an optimized nourishing environment for cultivation of Podisus maculiventris Say. provides the high level of development of population. The offered nourishing environment provides a survival at certain high level, a reduction to duration of post-embryonic development, an increase of indexes of mass of imago, amount of the set aside eggs. The predatory bedbugs grown on a nourishing environment are able to find and destroy for a day on 27,91 and 41,86 percents more eggs of the Colorado potato beetle comparatively with a control variant.

scholarly journals EVALUATION OF PODISUS MACULIVENTRIS (HETEROPTERA: PENTATOMIDAE) FOR CONTROL OF THE COLORADO POTATO BEETLE ON POTATOES GROWN UNDER ROWCOVER

HortScience ◽  
1996 ◽  
Vol 31 (6) ◽  
pp. 913B-913
Author(s):  
Rose Hiskes ◽  
Richard Ashley
Keyword(s):  
Colorado Potato Beetle ◽  
Field Experiments ◽  
Podisus Maculiventris ◽  
Potato Beetle ◽  
Heteroptera Pentatomidae

Posisus maculiventris, a Colorado potato beetle (CPB) predator native to Connecticut, is commercially available. This research evaluated Podisus' effectiveness against CPB at different predator-to-prey ratios. Field experiments were conducted over two summers. The first summer yields in the treatment with 100 CPB eggs and 6 predators and the control (0 CPB eggs and 0 predators) were significantly higher than treatment with 100 CPB eggs and 0 predators. The second summer yield for treatment with 100 CPB eggs and 12 predators and the control were significantly higher than the remaining treatments with 0, 3, and 6 predators. Podisus maculiventris holds promise for control of CPB on potatoes grown under rowcover. Further research, determining the effects of all native CPB predators as pesticides more favorable to them are used, is needed.

Conditions for Short-Term Storage of Field-Collected Spined Soldier Bug, Podisus maculiventris (Say) (Heteroptera: Pentatomidae), Adults Prior to Augmentative Release1

2004 ◽  
Vol 39 (4) ◽  
pp. 483-489 ◽  
Author(s):  
Kevin W. Thorpe ◽  
Jeffrey R. Aldrich
Keyword(s):  
Colorado Potato Beetle ◽  
Storage Period ◽  
Podisus Maculiventris ◽  
Short Term ◽  
Potato Beetle ◽  
Spined Soldier Bug ◽  
Short Term Storage ◽  
Augmentative Release ◽  
Heteroptera Pentatomidae ◽  
Term Storage

The date at which spined soldier bugs, Podisus maculiventris (Say) (Heteroptera: Pentatomidae), can be trapped for augmentative release against overwintered Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), may be up to 5 wks earlier than the date of peak Colorado potato beetle emergence, necessitating storage of field-collected spined soldier bugs prior to release. The effects of temperature, photoperiod, and food on spined soldier bug survivorship and fecundity during and after a 5-wk storage period were investigated. In general, unfed spined soldier bugs had greater mortality and reduced fecundity compared with those fed string beans and mealworm larvae during storage. Temperature and photoperiod generally had no effect. However, female spined soldier bug survivorship was greater among unfed insects stored at 5°C compared with those stored at 15°C. Therefore, household refrigerators can be used for short-term storage of field-collected spined soldier bugs. Even when stored spined soldier bug females are fed, fecundity is low (14 nymphs per female originally collected). This may limit the use of field-collected spined soldier bugs for augmentative release against Colorado potato beetle to relatively small plantings of potatoes.

scholarly journals Efficiency of insecticides against basic potato’s phytophages under sprinkling and drip irrigation

2020 ◽  
Vol 11 (3) ◽  
Author(s):  
F.S. Melnychuk ◽  
◽  
S.A. Alekseeva ◽  
O.V. Hordiienko ◽  
L.M. Melnychuk ◽  
...  
Keyword(s):  
Colorado Potato Beetle ◽  
Drip Irrigation ◽  
Insect Pests ◽  
Potato Tubers ◽  
Active Growth ◽  
Aerial Parts ◽  
Potato Beetle ◽  
Wide Range ◽  
Leptinotarsa Decemlineata Say ◽  
High Level

The article summarizes the results of determining the effectiveness of insecticides against the Colorado potato beetle (Leptinotarsa decemlineata Say) and aphids (Aphididae) with various methods of their application. Tests of a wide range of drugs with different active substances have provided high rates of stored yield in the system of potatoes’ protection. The investigated preptns showed a high level of protection against damage of plants by the Colorado potato beetle, when processing potato tubers. So, the effectiveness of the Prestige insecticides, 290 FS, Emesto Quantum 273,5 FS and Celest Top 312,5 FS, in the phase of active growth of the culture was 91,2-97,6%, and the duration of the protective effect was much longer than in Cruiser 350 FS, l.s.c, where the death rate was 86,1%. The predominant method of insecticidal treatments is the spraying of the aerial parts of plants during the growing season, as a rule, during the period of mass revival and development of Colorado potato beetle larvae. The greatest efficacy of insecticides on day 3 was noted on the options with the introduction of Confidor, 20% w.s.c., Calypso, 48% s.c. and Enzhio, 24,7% s.c., respectively 99,5%, 99,2% and 99,3%. The largest decrease in the number and population of potato plant aphids was noted with the use of the sample Enzhio, 24,7% s.c. at the recommended consumption rate – 98,2%. Along with this, other methods of insecticides’ applications are being developed and improved, in particular, the introduction of preps with drip irrigation. The effectiveness of the insecticides Enzhio, 24,7% s.c., Confidor, 20% w.s.c., was on par with Calypso, 48% s.c. The lowest protection observed in the areas of Actara’s, 24% c.p. application. In a field assessment of the insecticide’ use against aphids on a drip irrigation, it was noted that, with the usage of the Enzhio, 24,7% s.c., the efficiency was 99,4%. The use of other insecticides also contributed to a decrease in the population of potato plants by insect-pests and provided high protection at the level of 93,1-95,4%. Accordingly, the yield of potato tubers with the application of Enzhio, 24.7% s.c. was maximum and amounted to 29,7 t/ha.

scholarly journals Engineering Transgenic Eggplant (Solanum melongena L.) Resistant to the Colorado Potato Beetle (Leptinotarsa decemlineata Say)

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 572a-572
Author(s):  
G. Jelenkovic ◽  
S. Billings ◽  
Q. Chen ◽  
J. Lashomb ◽  
G. Ghidiu
Keyword(s):  
Transgenic Plants ◽  
Colorado Potato Beetle ◽  
Solanum Melongena ◽  
Potato Beetle ◽  
Leptinotarsa Decemlineata Say ◽  
Detached Leaves ◽  
Chimeric Construct ◽  
Single Construct ◽  
High Level ◽  
Very High

A chimeric construct, containing the synthetic cryIIIA (Btt) gene, the NPTII selectable marker and the uidA reporter gene, was incorporated via Agrobacterium tumefaciens into eggplant, variety Hibush. The synthetic cryIIIA gene, altered at the nucleotide level without changing the amino acids of the toxic protein by J. Kemp of New Mexico State Univ., Las Cruces, is adapted for high expression in plant cells. To verify the transgenic status, GUS assays were performed on over 300 plants, from which 185 were confirmed to be transgenic. Physical incorporation of the chimeric construct was further confirmed by Southern analysis of about 30 transgenic plants; both single and multiple site incorporation of the Btt gene were found. Resistance to Colorado potato beetle (CPB) was assessed by: a) placing egg masses of CPB on leaves of plants grown in the growth chamber; b) placing first-instar larvae on detached leaves; c) observing 173 transgenic plants under field conditions. About 60% of the transgenic plants displayed a very high level of resistance to CPB. No larvae survived on the resistant plants longer than 50–60 hours after hatching. Upon selfing, the transgenic plants with a single construct segregate in the S1 generation in a Mendelian fashion.

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