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Brazilian Peppertree Stem Humdrum Weevil, Apocnemidophorus pipitzi

Brazilian Peppertree Stem Humdrum Weevil, Apocnemidophorus pipitzi

In The state, in which it had been create in the 1950s, Elizabeth. unguiculus try widely distributed towards the Brazilian peppertree, nevertheless bug seem to is not sufficiently abundant to severely damage brand new plant (Yoshioka and , private observance). The latest ineffectiveness off E. unguiculus as a physiological handle representative about Island destinations will get feel owed in part to biotic mortality circumstances unique to that particular environment. Such, a couple of wasps that were introduced with the The state to have traditional biological handle of your own sugar-cane leafroller Hedylepta (=Omiodes) accepta (Butler) have been found assaulting E. unguiculus soon after it had been put-out against Brazilian peppertree (Krauss 1963).

The fresh new sexes out-of An excellent

In the event satisfactory biological power over Brazilian peppertree by the E. unguiculus was not attained regarding the Hawaiian archipelago, that it failure should not preclude the development of this new insect to the Florida. Episimus unguiculus is a much better physical control representative out of Brazilian peppertree inside Florida since it is introduced into the a great the latest environment where biotic death off delivered and local parasitoids and you may predators tends to be faster significant compared to Their state. Machine assortment research are done, and a launch petition is published to brand new Tag during the (Cuda ainsi que al. 2019). not, Mark failed to highly recommend field release into the Fl from the danger of apparent race that have native Episimus spp., therefore the possibility the brand new insect so you’re able to assault expanded pistachio on unrealistic knowledge that E. unguiculus emigrated in order to southern area Ca and Washington. The danger so you can nontarget insects and plant life from Age. unguiculus would-be career tested making use of the F1 Sterile Bug Strategy (Cuda 2016). Production of F1 sterile progeny could be obtained from the exposing the newest adult age bracket to help you lower dosage from gamma radiation (Moeri et al. 2009). This will facilitate observations towards the endurance and you may impression of the F1 larvae on nontarget plant life under real industry requirements without chance of long lasting business, given that people produced from the new F1 larvae are completely sterile.

Surveys used has just when you look at the north Argentina (McKay ainsi que al. 2009), and you will southeastern Paraguay revealed the clear presence of multiple the fresh new natural enemies off Brazilian peppertree. Of the have been a few types of base humdrum weevils belonging to this new genus Apocnemidophorus Hustache. This new weevils be like bird droppings and you will quickly drop-off new plant life while they are interrupted. Adults off Apocnemidophorus pipitzi (Faust) was built-up when you look at the southeastern Paraguay and you can imported toward a florida containment lab in . Considering Wibmer and you may O’Brien (1986), A beneficial. pipitzi try native to Argentina, Brazil, and Uruguay. An examination of weevil specimens deposited from the entomology museum of the fresh new Government College or university regarding Parana inside the Curitiba, Brazil, indicated that stuff out-of Good. pipitzi have been made in the us regarding Parana, Santa Catarina, and you will Minas Gerais. pipitzi in Paraguay are a separate country listing for it species.

This new thickness of A great

The new adults assortment in dimensions out of cuatro to eight mm inside the size and so are grayish brown during the colour, having real time specimens will looking even more rich and creamy than grayish (Contour 5). A dense area regarding white scales is actually visible towards the sides of pronotum which can be smaller obvious for the bottom level of the abdomen. Other parts of your own body have just a few scattered parts which have white balances. Here also are several patches out-of black balances across the elytra, that are certainly apparent below magnification, supplying the elytra (forewings) a somewhat mottled looks.

pipitzi was readily distinguishable. Based on C. W. O’Brien (personm.), there are noticeable variations in the new rostrum sugar daddy website canada (snout) and you will antennal insertion within the gents and ladies off An excellent. pipitzi. The brand new girls possess an uniformly curved relatively uniformly cylindrical rostrum with no difference between diameter or curve from the antennal installation. In contrast, the boys possess a strong dorsal expansion at the antennal installation, as well as the rostrum was narrowed outside of the installation, firmly angled ventrally, and dorsally hit bottom. This might be obvious even yet in tiny specimens. Most other types of the genus, certain comparable to look at, lack instance noticeable male variations in the fresh rostrum.

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